Home / 21,625.55-29,798.96-15,951.30

Finding the Fourth Proportional to 21,625.55, 29,798.96 and 15,951.30

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Solution

The fourth proportional to 21,625.55, 29,798.96 and 15,951.30 is: 21,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.55 : 29,798.96 = 15,951.30 : x
  2. Step 2: Convert to fraction form
    21,625.55/29,798.96 = 15,951.30/x
  3. Step 3: Cross multiply
    21,625.55x = 29,798.96 × 15,951.30
  4. Step 4: Simplify right side
    21,625.55x = 475,332,190.53
  5. Step 5: Solve for x
    x = 475,332,190.53/21,625.55
  6. Step 6: Final answer
    x = 21,980.13

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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.