Home / 25,158.08-34,717.20-13,980.80

Finding the Fourth Proportional to 25,158.08, 34,717.20 and 13,980.80

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Solution

The fourth proportional to 25,158.08, 34,717.20 and 13,980.80 is: 19,292.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,158.08 : 34,717.20 = 13,980.80 : x
  2. Step 2: Convert to fraction form
    25,158.08/34,717.20 = 13,980.80/x
  3. Step 3: Cross multiply
    25,158.08x = 34,717.20 × 13,980.80
  4. Step 4: Simplify right side
    25,158.08x = 485,374,229.76
  5. Step 5: Solve for x
    x = 485,374,229.76/25,158.08
  6. Step 6: Final answer
    x = 19,292.98

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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.