Home / 42,836.90-64,253.52-11,672.15

Finding the Fourth Proportional to 42,836.90, 64,253.52 and 11,672.15

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Solution

The fourth proportional to 42,836.90, 64,253.52 and 11,672.15 is: 17,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,836.90 : 64,253.52 = 11,672.15 : x
  2. Step 2: Convert to fraction form
    42,836.90/64,253.52 = 11,672.15/x
  3. Step 3: Cross multiply
    42,836.90x = 64,253.52 × 11,672.15
  4. Step 4: Simplify right side
    42,836.90x = 749,976,402.20
  5. Step 5: Solve for x
    x = 749,976,402.20/42,836.90
  6. Step 6: Final answer
    x = 17,507.72

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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.