Home / 25,251.20-37,876.80-12,809.60

Finding the Fourth Proportional to 25,251.20, 37,876.80 and 12,809.60

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Solution

The fourth proportional to 25,251.20, 37,876.80 and 12,809.60 is: 19,214.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,251.20 : 37,876.80 = 12,809.60 : x
  2. Step 2: Convert to fraction form
    25,251.20/37,876.80 = 12,809.60/x
  3. Step 3: Cross multiply
    25,251.20x = 37,876.80 × 12,809.60
  4. Step 4: Simplify right side
    25,251.20x = 485,186,657.28
  5. Step 5: Solve for x
    x = 485,186,657.28/25,251.20
  6. Step 6: Final answer
    x = 19,214.40

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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.