Home / 31,507.13-47,261.61-11,781.92

Finding the Fourth Proportional to 31,507.13, 47,261.61 and 11,781.92

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Solution

The fourth proportional to 31,507.13, 47,261.61 and 11,781.92 is: 17,673.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507.13 : 47,261.61 = 11,781.92 : x
  2. Step 2: Convert to fraction form
    31,507.13/47,261.61 = 11,781.92/x
  3. Step 3: Cross multiply
    31,507.13x = 47,261.61 × 11,781.92
  4. Step 4: Simplify right side
    31,507.13x = 556,832,626.25
  5. Step 5: Solve for x
    x = 556,832,626.25/31,507.13
  6. Step 6: Final answer
    x = 17,673.22

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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.