Home / 21,305.07-29,397.15-14,951.07

Finding the Fourth Proportional to 21,305.07, 29,397.15 and 14,951.07

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Solution

The fourth proportional to 21,305.07, 29,397.15 and 14,951.07 is: 20,629.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305.07 : 29,397.15 = 14,951.07 : x
  2. Step 2: Convert to fraction form
    21,305.07/29,397.15 = 14,951.07/x
  3. Step 3: Cross multiply
    21,305.07x = 29,397.15 × 14,951.07
  4. Step 4: Simplify right side
    21,305.07x = 439,518,847.45
  5. Step 5: Solve for x
    x = 439,518,847.45/21,305.07
  6. Step 6: Final answer
    x = 20,629.78

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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.