Home / 27,617.59-38,108.19-15,678.64

Finding the Fourth Proportional to 27,617.59, 38,108.19 and 15,678.64

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Solution

The fourth proportional to 27,617.59, 38,108.19 and 15,678.64 is: 21,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,617.59 : 38,108.19 = 15,678.64 : x
  2. Step 2: Convert to fraction form
    27,617.59/38,108.19 = 15,678.64/x
  3. Step 3: Cross multiply
    27,617.59x = 38,108.19 × 15,678.64
  4. Step 4: Simplify right side
    27,617.59x = 597,484,592.06
  5. Step 5: Solve for x
    x = 597,484,592.06/27,617.59
  6. Step 6: Final answer
    x = 21,634.20

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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.