Home / 38,658.74-57,971.70-13,705.07

Finding the Fourth Proportional to 38,658.74, 57,971.70 and 13,705.07

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Solution

The fourth proportional to 38,658.74, 57,971.70 and 13,705.07 is: 20,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,658.74 : 57,971.70 = 13,705.07 : x
  2. Step 2: Convert to fraction form
    38,658.74/57,971.70 = 13,705.07/x
  3. Step 3: Cross multiply
    38,658.74x = 57,971.70 × 13,705.07
  4. Step 4: Simplify right side
    38,658.74x = 794,505,916.66
  5. Step 5: Solve for x
    x = 794,505,916.66/38,658.74
  6. Step 6: Final answer
    x = 20,551.78

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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.