Home / 27,129.79-37,438.08-15,192.53

Finding the Fourth Proportional to 27,129.79, 37,438.08 and 15,192.53

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Solution

The fourth proportional to 27,129.79, 37,438.08 and 15,192.53 is: 20,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.79 : 37,438.08 = 15,192.53 : x
  2. Step 2: Convert to fraction form
    27,129.79/37,438.08 = 15,192.53/x
  3. Step 3: Cross multiply
    27,129.79x = 37,438.08 × 15,192.53
  4. Step 4: Simplify right side
    27,129.79x = 568,779,153.54
  5. Step 5: Solve for x
    x = 568,779,153.54/27,129.79
  6. Step 6: Final answer
    x = 20,965.11

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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.