Home / 27,931.62-38,544.66-15,356.28

Finding the Fourth Proportional to 27,931.62, 38,544.66 and 15,356.28

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Solution

The fourth proportional to 27,931.62, 38,544.66 and 15,356.28 is: 21,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,931.62 : 38,544.66 = 15,356.28 : x
  2. Step 2: Convert to fraction form
    27,931.62/38,544.66 = 15,356.28/x
  3. Step 3: Cross multiply
    27,931.62x = 38,544.66 × 15,356.28
  4. Step 4: Simplify right side
    27,931.62x = 591,902,591.46
  5. Step 5: Solve for x
    x = 591,902,591.46/27,931.62
  6. Step 6: Final answer
    x = 21,191.13

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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.