Home / 27,824.72-38,397.84-15,077.61

Finding the Fourth Proportional to 27,824.72, 38,397.84 and 15,077.61

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Solution

The fourth proportional to 27,824.72, 38,397.84 and 15,077.61 is: 20,806.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,824.72 : 38,397.84 = 15,077.61 : x
  2. Step 2: Convert to fraction form
    27,824.72/38,397.84 = 15,077.61/x
  3. Step 3: Cross multiply
    27,824.72x = 38,397.84 × 15,077.61
  4. Step 4: Simplify right side
    27,824.72x = 578,947,656.36
  5. Step 5: Solve for x
    x = 578,947,656.36/27,824.72
  6. Step 6: Final answer
    x = 20,806.95

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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.