Home / 42,439.14-63,658.80-11,274.30

Finding the Fourth Proportional to 42,439.14, 63,658.80 and 11,274.30

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Solution

The fourth proportional to 42,439.14, 63,658.80 and 11,274.30 is: 16,911.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,439.14 : 63,658.80 = 11,274.30 : x
  2. Step 2: Convert to fraction form
    42,439.14/63,658.80 = 11,274.30/x
  3. Step 3: Cross multiply
    42,439.14x = 63,658.80 × 11,274.30
  4. Step 4: Simplify right side
    42,439.14x = 717,708,408.84
  5. Step 5: Solve for x
    x = 717,708,408.84/42,439.14
  6. Step 6: Final answer
    x = 16,911.47

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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.