Home / 20,713.67-28,586.09-15,600.17

Finding the Fourth Proportional to 20,713.67, 28,586.09 and 15,600.17

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Solution

The fourth proportional to 20,713.67, 28,586.09 and 15,600.17 is: 21,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713.67 : 28,586.09 = 15,600.17 : x
  2. Step 2: Convert to fraction form
    20,713.67/28,586.09 = 15,600.17/x
  3. Step 3: Cross multiply
    20,713.67x = 28,586.09 × 15,600.17
  4. Step 4: Simplify right side
    20,713.67x = 445,947,792.17
  5. Step 5: Solve for x
    x = 445,947,792.17/20,713.67
  6. Step 6: Final answer
    x = 21,529.15

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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.