Home / 27,129.92-37,440-15,193.20

Finding the Fourth Proportional to 27,129.92, 37,440 and 15,193.20

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Solution

The fourth proportional to 27,129.92, 37,440 and 15,193.20 is: 20,967.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.92 : 37,440 = 15,193.20 : x
  2. Step 2: Convert to fraction form
    27,129.92/37,440 = 15,193.20/x
  3. Step 3: Cross multiply
    27,129.92x = 37,440 × 15,193.20
  4. Step 4: Simplify right side
    27,129.92x = 568,833,408
  5. Step 5: Solve for x
    x = 568,833,408/27,129.92
  6. Step 6: Final answer
    x = 20,967.01

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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.