Home / 27,920.16-38,528.76-15,984.61

Finding the Fourth Proportional to 27,920.16, 38,528.76 and 15,984.61

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Solution

The fourth proportional to 27,920.16, 38,528.76 and 15,984.61 is: 22,058.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.16 : 38,528.76 = 15,984.61 : x
  2. Step 2: Convert to fraction form
    27,920.16/38,528.76 = 15,984.61/x
  3. Step 3: Cross multiply
    27,920.16x = 38,528.76 × 15,984.61
  4. Step 4: Simplify right side
    27,920.16x = 615,867,166.00
  5. Step 5: Solve for x
    x = 615,867,166.00/27,920.16
  6. Step 6: Final answer
    x = 22,058.15

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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.