Home / 39,454.64-54,446.52-21,549.71

Finding the Fourth Proportional to 39,454.64, 54,446.52 and 21,549.71

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Solution

The fourth proportional to 39,454.64, 54,446.52 and 21,549.71 is: 29,738.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,454.64 : 54,446.52 = 21,549.71 : x
  2. Step 2: Convert to fraction form
    39,454.64/54,446.52 = 21,549.71/x
  3. Step 3: Cross multiply
    39,454.64x = 54,446.52 × 21,549.71
  4. Step 4: Simplify right side
    39,454.64x = 1,173,306,444.28
  5. Step 5: Solve for x
    x = 1,173,306,444.28/39,454.64
  6. Step 6: Final answer
    x = 29,738.11

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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.