Home / 27,753.47-38,300.70-15,178.22

Finding the Fourth Proportional to 27,753.47, 38,300.70 and 15,178.22

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Solution

The fourth proportional to 27,753.47, 38,300.70 and 15,178.22 is: 20,946.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,753.47 : 38,300.70 = 15,178.22 : x
  2. Step 2: Convert to fraction form
    27,753.47/38,300.70 = 15,178.22/x
  3. Step 3: Cross multiply
    27,753.47x = 38,300.70 × 15,178.22
  4. Step 4: Simplify right side
    27,753.47x = 581,336,374.42
  5. Step 5: Solve for x
    x = 581,336,374.42/27,753.47
  6. Step 6: Final answer
    x = 20,946.44

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Double scale
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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.