Home / 31,428.80-47,143.82-25,159.72

Finding the Fourth Proportional to 31,428.80, 47,143.82 and 25,159.72

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Solution

The fourth proportional to 31,428.80, 47,143.82 and 25,159.72 is: 37,740.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.80 : 47,143.82 = 25,159.72 : x
  2. Step 2: Convert to fraction form
    31,428.80/47,143.82 = 25,159.72/x
  3. Step 3: Cross multiply
    31,428.80x = 47,143.82 × 25,159.72
  4. Step 4: Simplify right side
    31,428.80x = 1,186,125,310.93
  5. Step 5: Solve for x
    x = 1,186,125,310.93/31,428.80
  6. Step 6: Final answer
    x = 37,740.08

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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.