Home / 31,781.68-47,685.48-25,599.76

Finding the Fourth Proportional to 31,781.68, 47,685.48 and 25,599.76

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Solution

The fourth proportional to 31,781.68, 47,685.48 and 25,599.76 is: 38,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.68 : 47,685.48 = 25,599.76 : x
  2. Step 2: Convert to fraction form
    31,781.68/47,685.48 = 25,599.76/x
  3. Step 3: Cross multiply
    31,781.68x = 47,685.48 × 25,599.76
  4. Step 4: Simplify right side
    31,781.68x = 1,220,736,843.48
  5. Step 5: Solve for x
    x = 1,220,736,843.48/31,781.68
  6. Step 6: Final answer
    x = 38,410.08

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1.5x scale

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.