Home / 39,479.94-54,482.46-21,575.22

Finding the Fourth Proportional to 39,479.94, 54,482.46 and 21,575.22

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Solution

The fourth proportional to 39,479.94, 54,482.46 and 21,575.22 is: 29,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,479.94 : 54,482.46 = 21,575.22 : x
  2. Step 2: Convert to fraction form
    39,479.94/54,482.46 = 21,575.22/x
  3. Step 3: Cross multiply
    39,479.94x = 54,482.46 × 21,575.22
  4. Step 4: Simplify right side
    39,479.94x = 1,175,471,060.64
  5. Step 5: Solve for x
    x = 1,175,471,060.64/39,479.94
  6. Step 6: Final answer
    x = 29,773.88

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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.