Home / 28,208.70-38,927.93-15,633.45

Finding the Fourth Proportional to 28,208.70, 38,927.93 and 15,633.45

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Solution

The fourth proportional to 28,208.70, 38,927.93 and 15,633.45 is: 21,574.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.70 : 38,927.93 = 15,633.45 : x
  2. Step 2: Convert to fraction form
    28,208.70/38,927.93 = 15,633.45/x
  3. Step 3: Cross multiply
    28,208.70x = 38,927.93 × 15,633.45
  4. Step 4: Simplify right side
    28,208.70x = 608,577,769.09
  5. Step 5: Solve for x
    x = 608,577,769.09/28,208.70
  6. Step 6: Final answer
    x = 21,574.12

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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.