Home / 21,472.22-29,600.51-15,079.34

Finding the Fourth Proportional to 21,472.22, 29,600.51 and 15,079.34

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Solution

The fourth proportional to 21,472.22, 29,600.51 and 15,079.34 is: 20,787.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472.22 : 29,600.51 = 15,079.34 : x
  2. Step 2: Convert to fraction form
    21,472.22/29,600.51 = 15,079.34/x
  3. Step 3: Cross multiply
    21,472.22x = 29,600.51 × 15,079.34
  4. Step 4: Simplify right side
    21,472.22x = 446,356,153.07
  5. Step 5: Solve for x
    x = 446,356,153.07/21,472.22
  6. Step 6: Final answer
    x = 20,787.61

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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.