Home / 38,386.34-57,584.70-13,420.52

Finding the Fourth Proportional to 38,386.34, 57,584.70 and 13,420.52

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Solution

The fourth proportional to 38,386.34, 57,584.70 and 13,420.52 is: 20,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.34 : 57,584.70 = 13,420.52 : x
  2. Step 2: Convert to fraction form
    38,386.34/57,584.70 = 13,420.52/x
  3. Step 3: Cross multiply
    38,386.34x = 57,584.70 × 13,420.52
  4. Step 4: Simplify right side
    38,386.34x = 772,816,330.12
  5. Step 5: Solve for x
    x = 772,816,330.12/38,386.34
  6. Step 6: Final answer
    x = 20,132.59

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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.