Home / 22,861.47-31,555.17-13,303.20

Finding the Fourth Proportional to 22,861.47, 31,555.17 and 13,303.20

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Solution

The fourth proportional to 22,861.47, 31,555.17 and 13,303.20 is: 18,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,861.47 : 31,555.17 = 13,303.20 : x
  2. Step 2: Convert to fraction form
    22,861.47/31,555.17 = 13,303.20/x
  3. Step 3: Cross multiply
    22,861.47x = 31,555.17 × 13,303.20
  4. Step 4: Simplify right side
    22,861.47x = 419,784,737.54
  5. Step 5: Solve for x
    x = 419,784,737.54/22,861.47
  6. Step 6: Final answer
    x = 18,362.11

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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.