Home / 25,545.60-38,302.56-9,945

Finding the Fourth Proportional to 25,545.60, 38,302.56 and 9,945

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Solution

The fourth proportional to 25,545.60, 38,302.56 and 9,945 is: 14,911.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,545.60 : 38,302.56 = 9,945 : x
  2. Step 2: Convert to fraction form
    25,545.60/38,302.56 = 9,945/x
  3. Step 3: Cross multiply
    25,545.60x = 38,302.56 × 9,945
  4. Step 4: Simplify right side
    25,545.60x = 380,918,959.20
  5. Step 5: Solve for x
    x = 380,918,959.20/25,545.60
  6. Step 6: Final answer
    x = 14,911.33

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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.