Home / 27,854.52-38,440.04-15,280.08

Finding the Fourth Proportional to 27,854.52, 38,440.04 and 15,280.08

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Solution

The fourth proportional to 27,854.52, 38,440.04 and 15,280.08 is: 21,086.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,854.52 : 38,440.04 = 15,280.08 : x
  2. Step 2: Convert to fraction form
    27,854.52/38,440.04 = 15,280.08/x
  3. Step 3: Cross multiply
    27,854.52x = 38,440.04 × 15,280.08
  4. Step 4: Simplify right side
    27,854.52x = 587,366,886.40
  5. Step 5: Solve for x
    x = 587,366,886.40/27,854.52
  6. Step 6: Final answer
    x = 21,086.95

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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.