Home / 27,117.18-37,419.86-15,016.78

Finding the Fourth Proportional to 27,117.18, 37,419.86 and 15,016.78

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Solution

The fourth proportional to 27,117.18, 37,419.86 and 15,016.78 is: 20,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,117.18 : 37,419.86 = 15,016.78 : x
  2. Step 2: Convert to fraction form
    27,117.18/37,419.86 = 15,016.78/x
  3. Step 3: Cross multiply
    27,117.18x = 37,419.86 × 15,016.78
  4. Step 4: Simplify right side
    27,117.18x = 561,925,805.25
  5. Step 5: Solve for x
    x = 561,925,805.25/27,117.18
  6. Step 6: Final answer
    x = 20,722.13

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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.