Home / 27,650.18-38,155.60-15,711.86

Finding the Fourth Proportional to 27,650.18, 38,155.60 and 15,711.86

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Solution

The fourth proportional to 27,650.18, 38,155.60 and 15,711.86 is: 21,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,650.18 : 38,155.60 = 15,711.86 : x
  2. Step 2: Convert to fraction form
    27,650.18/38,155.60 = 15,711.86/x
  3. Step 3: Cross multiply
    27,650.18x = 38,155.60 × 15,711.86
  4. Step 4: Simplify right side
    27,650.18x = 599,495,215.36
  5. Step 5: Solve for x
    x = 599,495,215.36/27,650.18
  6. Step 6: Final answer
    x = 21,681.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.