Home / 22,541.22-31,117.74-15,000.12

Finding the Fourth Proportional to 22,541.22, 31,117.74 and 15,000.12

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Solution

The fourth proportional to 22,541.22, 31,117.74 and 15,000.12 is: 20,707.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,541.22 : 31,117.74 = 15,000.12 : x
  2. Step 2: Convert to fraction form
    22,541.22/31,117.74 = 15,000.12/x
  3. Step 3: Cross multiply
    22,541.22x = 31,117.74 × 15,000.12
  4. Step 4: Simplify right side
    22,541.22x = 466,769,834.13
  5. Step 5: Solve for x
    x = 466,769,834.13/22,541.22
  6. Step 6: Final answer
    x = 20,707.39

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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.