Home / 19,686.62-29,531.40-5,646.53

Finding the Fourth Proportional to 19,686.62, 29,531.40 and 5,646.53

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Solution

The fourth proportional to 19,686.62, 29,531.40 and 5,646.53 is: 8,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.62 : 29,531.40 = 5,646.53 : x
  2. Step 2: Convert to fraction form
    19,686.62/29,531.40 = 5,646.53/x
  3. Step 3: Cross multiply
    19,686.62x = 29,531.40 × 5,646.53
  4. Step 4: Simplify right side
    19,686.62x = 166,749,936.04
  5. Step 5: Solve for x
    x = 166,749,936.04/19,686.62
  6. Step 6: Final answer
    x = 8,470.22

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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.