Home / 42,421.52-63,660.72-19,049.60

Finding the Fourth Proportional to 42,421.52, 63,660.72 and 19,049.60

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Solution

The fourth proportional to 42,421.52, 63,660.72 and 19,049.60 is: 28,587.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,421.52 : 63,660.72 = 19,049.60 : x
  2. Step 2: Convert to fraction form
    42,421.52/63,660.72 = 19,049.60/x
  3. Step 3: Cross multiply
    42,421.52x = 63,660.72 × 19,049.60
  4. Step 4: Simplify right side
    42,421.52x = 1,212,711,251.71
  5. Step 5: Solve for x
    x = 1,212,711,251.71/42,421.52
  6. Step 6: Final answer
    x = 28,587.17

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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.