Home / 22,545.86-31,099.71-14,889.20

Finding the Fourth Proportional to 22,545.86, 31,099.71 and 14,889.20

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Solution

The fourth proportional to 22,545.86, 31,099.71 and 14,889.20 is: 20,538.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,545.86 : 31,099.71 = 14,889.20 : x
  2. Step 2: Convert to fraction form
    22,545.86/31,099.71 = 14,889.20/x
  3. Step 3: Cross multiply
    22,545.86x = 31,099.71 × 14,889.20
  4. Step 4: Simplify right side
    22,545.86x = 463,049,572.19
  5. Step 5: Solve for x
    x = 463,049,572.19/22,545.86
  6. Step 6: Final answer
    x = 20,538.12

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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.