Home / 28,206.19-38,927.27-15,630.94

Finding the Fourth Proportional to 28,206.19, 38,927.27 and 15,630.94

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Solution

The fourth proportional to 28,206.19, 38,927.27 and 15,630.94 is: 21,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,206.19 : 38,927.27 = 15,630.94 : x
  2. Step 2: Convert to fraction form
    28,206.19/38,927.27 = 15,630.94/x
  3. Step 3: Cross multiply
    28,206.19x = 38,927.27 × 15,630.94
  4. Step 4: Simplify right side
    28,206.19x = 608,469,821.73
  5. Step 5: Solve for x
    x = 608,469,821.73/28,206.19
  6. Step 6: Final answer
    x = 21,572.21

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Half scale
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Double scale
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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.