Home / 42,425.28-63,639.54-11,260.80

Finding the Fourth Proportional to 42,425.28, 63,639.54 and 11,260.80

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Solution

The fourth proportional to 42,425.28, 63,639.54 and 11,260.80 is: 16,891.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,425.28 : 63,639.54 = 11,260.80 : x
  2. Step 2: Convert to fraction form
    42,425.28/63,639.54 = 11,260.80/x
  3. Step 3: Cross multiply
    42,425.28x = 63,639.54 × 11,260.80
  4. Step 4: Simplify right side
    42,425.28x = 716,632,132.03
  5. Step 5: Solve for x
    x = 716,632,132.03/42,425.28
  6. Step 6: Final answer
    x = 16,891.63

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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.