Home / 40,428.24-60,642.36-12,347.16

Finding the Fourth Proportional to 40,428.24, 60,642.36 and 12,347.16

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Solution

The fourth proportional to 40,428.24, 60,642.36 and 12,347.16 is: 18,520.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,428.24 : 60,642.36 = 12,347.16 : x
  2. Step 2: Convert to fraction form
    40,428.24/60,642.36 = 12,347.16/x
  3. Step 3: Cross multiply
    40,428.24x = 60,642.36 × 12,347.16
  4. Step 4: Simplify right side
    40,428.24x = 748,760,921.70
  5. Step 5: Solve for x
    x = 748,760,921.70/40,428.24
  6. Step 6: Final answer
    x = 18,520.74

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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.