Home / 25,425.60-38,138.40-17,649.60

Finding the Fourth Proportional to 25,425.60, 38,138.40 and 17,649.60

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Solution

The fourth proportional to 25,425.60, 38,138.40 and 17,649.60 is: 26,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,425.60 : 38,138.40 = 17,649.60 : x
  2. Step 2: Convert to fraction form
    25,425.60/38,138.40 = 17,649.60/x
  3. Step 3: Cross multiply
    25,425.60x = 38,138.40 × 17,649.60
  4. Step 4: Simplify right side
    25,425.60x = 673,127,504.64
  5. Step 5: Solve for x
    x = 673,127,504.64/25,425.60
  6. Step 6: Final answer
    x = 26,474.40

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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.