Home / 19,939.60-29,851.35-15,543.64

Finding the Fourth Proportional to 19,939.60, 29,851.35 and 15,543.64

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Solution

The fourth proportional to 19,939.60, 29,851.35 and 15,543.64 is: 23,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.60 : 29,851.35 = 15,543.64 : x
  2. Step 2: Convert to fraction form
    19,939.60/29,851.35 = 15,543.64/x
  3. Step 3: Cross multiply
    19,939.60x = 29,851.35 × 15,543.64
  4. Step 4: Simplify right side
    19,939.60x = 463,998,637.91
  5. Step 5: Solve for x
    x = 463,998,637.91/19,939.60
  6. Step 6: Final answer
    x = 23,270.21

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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.