Home / 55,630.91-83,436.40-15,640.30

Finding the Fourth Proportional to 55,630.91, 83,436.40 and 15,640.30

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Solution

The fourth proportional to 55,630.91, 83,436.40 and 15,640.30 is: 23,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,630.91 : 83,436.40 = 15,640.30 : x
  2. Step 2: Convert to fraction form
    55,630.91/83,436.40 = 15,640.30/x
  3. Step 3: Cross multiply
    55,630.91x = 83,436.40 × 15,640.30
  4. Step 4: Simplify right side
    55,630.91x = 1,304,970,248.72
  5. Step 5: Solve for x
    x = 1,304,970,248.72/55,630.91
  6. Step 6: Final answer
    x = 23,457.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.