Home / 27,712.92-38,242.04-15,137.66

Finding the Fourth Proportional to 27,712.92, 38,242.04 and 15,137.66

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Solution

The fourth proportional to 27,712.92, 38,242.04 and 15,137.66 is: 20,888.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,712.92 : 38,242.04 = 15,137.66 : x
  2. Step 2: Convert to fraction form
    27,712.92/38,242.04 = 15,137.66/x
  3. Step 3: Cross multiply
    27,712.92x = 38,242.04 × 15,137.66
  4. Step 4: Simplify right side
    27,712.92x = 578,894,999.23
  5. Step 5: Solve for x
    x = 578,894,999.23/27,712.92
  6. Step 6: Final answer
    x = 20,888.99

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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.