Home / 22,640.76-31,244.22-12,570.75

Finding the Fourth Proportional to 22,640.76, 31,244.22 and 12,570.75

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Solution

The fourth proportional to 22,640.76, 31,244.22 and 12,570.75 is: 17,347.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,640.76 : 31,244.22 = 12,570.75 : x
  2. Step 2: Convert to fraction form
    22,640.76/31,244.22 = 12,570.75/x
  3. Step 3: Cross multiply
    22,640.76x = 31,244.22 × 12,570.75
  4. Step 4: Simplify right side
    22,640.76x = 392,763,278.57
  5. Step 5: Solve for x
    x = 392,763,278.57/22,640.76
  6. Step 6: Final answer
    x = 17,347.62

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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.