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Finding the Fourth Proportional to 27,392.75, 37,799.92 and 15,457.20

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Solution

The fourth proportional to 27,392.75, 37,799.92 and 15,457.20 is: 21,329.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,392.75 : 37,799.92 = 15,457.20 : x
  2. Step 2: Convert to fraction form
    27,392.75/37,799.92 = 15,457.20/x
  3. Step 3: Cross multiply
    27,392.75x = 37,799.92 × 15,457.20
  4. Step 4: Simplify right side
    27,392.75x = 584,280,714.05
  5. Step 5: Solve for x
    x = 584,280,714.05/27,392.75
  6. Step 6: Final answer
    x = 21,329.76

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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.