Home / 23,781.47-32,780.63-18,737.87

Finding the Fourth Proportional to 23,781.47, 32,780.63 and 18,737.87

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Solution

The fourth proportional to 23,781.47, 32,780.63 and 18,737.87 is: 25,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,781.47 : 32,780.63 = 18,737.87 : x
  2. Step 2: Convert to fraction form
    23,781.47/32,780.63 = 18,737.87/x
  3. Step 3: Cross multiply
    23,781.47x = 32,780.63 × 18,737.87
  4. Step 4: Simplify right side
    23,781.47x = 614,239,066.40
  5. Step 5: Solve for x
    x = 614,239,066.40/23,781.47
  6. Step 6: Final answer
    x = 25,828.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.