Home / 25,359.60-38,031.30-12,030.78

Finding the Fourth Proportional to 25,359.60, 38,031.30 and 12,030.78

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Solution

The fourth proportional to 25,359.60, 38,031.30 and 12,030.78 is: 18,042.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,359.60 : 38,031.30 = 12,030.78 : x
  2. Step 2: Convert to fraction form
    25,359.60/38,031.30 = 12,030.78/x
  3. Step 3: Cross multiply
    25,359.60x = 38,031.30 × 12,030.78
  4. Step 4: Simplify right side
    25,359.60x = 457,546,203.41
  5. Step 5: Solve for x
    x = 457,546,203.41/25,359.60
  6. Step 6: Final answer
    x = 18,042.33

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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.