Home / 39,209.12-58,801.28-12,908

Finding the Fourth Proportional to 39,209.12, 58,801.28 and 12,908

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Solution

The fourth proportional to 39,209.12, 58,801.28 and 12,908 is: 19,357.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,209.12 : 58,801.28 = 12,908 : x
  2. Step 2: Convert to fraction form
    39,209.12/58,801.28 = 12,908/x
  3. Step 3: Cross multiply
    39,209.12x = 58,801.28 × 12,908
  4. Step 4: Simplify right side
    39,209.12x = 759,006,922.24
  5. Step 5: Solve for x
    x = 759,006,922.24/39,209.12
  6. Step 6: Final answer
    x = 19,357.92

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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.