Home / 42,447.69-63,671.85-12,867.84

Finding the Fourth Proportional to 42,447.69, 63,671.85 and 12,867.84

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Solution

The fourth proportional to 42,447.69, 63,671.85 and 12,867.84 is: 19,301.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,447.69 : 63,671.85 = 12,867.84 : x
  2. Step 2: Convert to fraction form
    42,447.69/63,671.85 = 12,867.84/x
  3. Step 3: Cross multiply
    42,447.69x = 63,671.85 × 12,867.84
  4. Step 4: Simplify right side
    42,447.69x = 819,319,178.30
  5. Step 5: Solve for x
    x = 819,319,178.30/42,447.69
  6. Step 6: Final answer
    x = 19,301.86

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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.