Home / 31,419.78-47,130.28-25,150.70

Finding the Fourth Proportional to 31,419.78, 47,130.28 and 25,150.70

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Solution

The fourth proportional to 31,419.78, 47,130.28 and 25,150.70 is: 37,726.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,419.78 : 47,130.28 = 25,150.70 : x
  2. Step 2: Convert to fraction form
    31,419.78/47,130.28 = 25,150.70/x
  3. Step 3: Cross multiply
    31,419.78x = 47,130.28 × 25,150.70
  4. Step 4: Simplify right side
    31,419.78x = 1,185,359,533.20
  5. Step 5: Solve for x
    x = 1,185,359,533.20/31,419.78
  6. Step 6: Final answer
    x = 37,726.54

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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.