Home / 25,503.12-35,251.20-18,478.80

Finding the Fourth Proportional to 25,503.12, 35,251.20 and 18,478.80

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Solution

The fourth proportional to 25,503.12, 35,251.20 and 18,478.80 is: 25,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,503.12 : 35,251.20 = 18,478.80 : x
  2. Step 2: Convert to fraction form
    25,503.12/35,251.20 = 18,478.80/x
  3. Step 3: Cross multiply
    25,503.12x = 35,251.20 × 18,478.80
  4. Step 4: Simplify right side
    25,503.12x = 651,399,874.56
  5. Step 5: Solve for x
    x = 651,399,874.56/25,503.12
  6. Step 6: Final answer
    x = 25,541.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.