Home / 27,129.16-37,439.31-15,192.39

Finding the Fourth Proportional to 27,129.16, 37,439.31 and 15,192.39

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Solution

The fourth proportional to 27,129.16, 37,439.31 and 15,192.39 is: 20,966.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.16 : 37,439.31 = 15,192.39 : x
  2. Step 2: Convert to fraction form
    27,129.16/37,439.31 = 15,192.39/x
  3. Step 3: Cross multiply
    27,129.16x = 37,439.31 × 15,192.39
  4. Step 4: Simplify right side
    27,129.16x = 568,792,598.85
  5. Step 5: Solve for x
    x = 568,792,598.85/27,129.16
  6. Step 6: Final answer
    x = 20,966.10

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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.