Home / 27,883.11-38,479.56-15,308.13

Finding the Fourth Proportional to 27,883.11, 38,479.56 and 15,308.13

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Solution

The fourth proportional to 27,883.11, 38,479.56 and 15,308.13 is: 21,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,883.11 : 38,479.56 = 15,308.13 : x
  2. Step 2: Convert to fraction form
    27,883.11/38,479.56 = 15,308.13/x
  3. Step 3: Cross multiply
    27,883.11x = 38,479.56 × 15,308.13
  4. Step 4: Simplify right side
    27,883.11x = 589,050,106.82
  5. Step 5: Solve for x
    x = 589,050,106.82/27,883.11
  6. Step 6: Final answer
    x = 21,125.70

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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.