Home / 38,430.74-57,654.65-11,780.43

Finding the Fourth Proportional to 38,430.74, 57,654.65 and 11,780.43

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Solution

The fourth proportional to 38,430.74, 57,654.65 and 11,780.43 is: 17,673.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,430.74 : 57,654.65 = 11,780.43 : x
  2. Step 2: Convert to fraction form
    38,430.74/57,654.65 = 11,780.43/x
  3. Step 3: Cross multiply
    38,430.74x = 57,654.65 × 11,780.43
  4. Step 4: Simplify right side
    38,430.74x = 679,196,509.60
  5. Step 5: Solve for x
    x = 679,196,509.60/38,430.74
  6. Step 6: Final answer
    x = 17,673.26

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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.