Home / 38,731.79-58,091.60-10,653.95

Finding the Fourth Proportional to 38,731.79, 58,091.60 and 10,653.95

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Solution

The fourth proportional to 38,731.79, 58,091.60 and 10,653.95 is: 15,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,731.79 : 58,091.60 = 10,653.95 : x
  2. Step 2: Convert to fraction form
    38,731.79/58,091.60 = 10,653.95/x
  3. Step 3: Cross multiply
    38,731.79x = 58,091.60 × 10,653.95
  4. Step 4: Simplify right side
    38,731.79x = 618,905,001.82
  5. Step 5: Solve for x
    x = 618,905,001.82/38,731.79
  6. Step 6: Final answer
    x = 15,979.25

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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.