Home / 38,918.33-58,385.70-12,621.03

Finding the Fourth Proportional to 38,918.33, 58,385.70 and 12,621.03

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Solution

The fourth proportional to 38,918.33, 58,385.70 and 12,621.03 is: 18,934.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,918.33 : 58,385.70 = 12,621.03 : x
  2. Step 2: Convert to fraction form
    38,918.33/58,385.70 = 12,621.03/x
  3. Step 3: Cross multiply
    38,918.33x = 58,385.70 × 12,621.03
  4. Step 4: Simplify right side
    38,918.33x = 736,887,671.27
  5. Step 5: Solve for x
    x = 736,887,671.27/38,918.33
  6. Step 6: Final answer
    x = 18,934.21

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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.