Home / 40,639.03-60,957.38-12,555

Finding the Fourth Proportional to 40,639.03, 60,957.38 and 12,555

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Solution

The fourth proportional to 40,639.03, 60,957.38 and 12,555 is: 18,832.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,639.03 : 60,957.38 = 12,555 : x
  2. Step 2: Convert to fraction form
    40,639.03/60,957.38 = 12,555/x
  3. Step 3: Cross multiply
    40,639.03x = 60,957.38 × 12,555
  4. Step 4: Simplify right side
    40,639.03x = 765,319,937.29
  5. Step 5: Solve for x
    x = 765,319,937.29/40,639.03
  6. Step 6: Final answer
    x = 18,832.14

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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.