Home / 38,624.88-57,946.04-20,855.15

Finding the Fourth Proportional to 38,624.88, 57,946.04 and 20,855.15

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Solution

The fourth proportional to 38,624.88, 57,946.04 and 20,855.15 is: 31,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,624.88 : 57,946.04 = 20,855.15 : x
  2. Step 2: Convert to fraction form
    38,624.88/57,946.04 = 20,855.15/x
  3. Step 3: Cross multiply
    38,624.88x = 57,946.04 × 20,855.15
  4. Step 4: Simplify right side
    38,624.88x = 1,208,472,962.10
  5. Step 5: Solve for x
    x = 1,208,472,962.10/38,624.88
  6. Step 6: Final answer
    x = 31,287.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.