Home / 27,439.60-37,872.54-15,503.44

Finding the Fourth Proportional to 27,439.60, 37,872.54 and 15,503.44

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Solution

The fourth proportional to 27,439.60, 37,872.54 and 15,503.44 is: 21,398.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,439.60 : 37,872.54 = 15,503.44 : x
  2. Step 2: Convert to fraction form
    27,439.60/37,872.54 = 15,503.44/x
  3. Step 3: Cross multiply
    27,439.60x = 37,872.54 × 15,503.44
  4. Step 4: Simplify right side
    27,439.60x = 587,154,651.54
  5. Step 5: Solve for x
    x = 587,154,651.54/27,439.60
  6. Step 6: Final answer
    x = 21,398.08

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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.