Home / 28,208.18-38,927.32-15,632.94

Finding the Fourth Proportional to 28,208.18, 38,927.32 and 15,632.94

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Solution

The fourth proportional to 28,208.18, 38,927.32 and 15,632.94 is: 21,573.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.18 : 38,927.32 = 15,632.94 : x
  2. Step 2: Convert to fraction form
    28,208.18/38,927.32 = 15,632.94/x
  3. Step 3: Cross multiply
    28,208.18x = 38,927.32 × 15,632.94
  4. Step 4: Simplify right side
    28,208.18x = 608,548,457.92
  5. Step 5: Solve for x
    x = 608,548,457.92/28,208.18
  6. Step 6: Final answer
    x = 21,573.47

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.