Home / 27,686.42-38,207.37-15,111.17

Finding the Fourth Proportional to 27,686.42, 38,207.37 and 15,111.17

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Solution

The fourth proportional to 27,686.42, 38,207.37 and 15,111.17 is: 20,853.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,686.42 : 38,207.37 = 15,111.17 : x
  2. Step 2: Convert to fraction form
    27,686.42/38,207.37 = 15,111.17/x
  3. Step 3: Cross multiply
    27,686.42x = 38,207.37 × 15,111.17
  4. Step 4: Simplify right side
    27,686.42x = 577,357,872.29
  5. Step 5: Solve for x
    x = 577,357,872.29/27,686.42
  6. Step 6: Final answer
    x = 20,853.47

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Half scale
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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.