Home / 47,140.12-70,693.17-13,851.28

Finding the Fourth Proportional to 47,140.12, 70,693.17 and 13,851.28

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Solution

The fourth proportional to 47,140.12, 70,693.17 and 13,851.28 is: 20,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,140.12 : 70,693.17 = 13,851.28 : x
  2. Step 2: Convert to fraction form
    47,140.12/70,693.17 = 13,851.28/x
  3. Step 3: Cross multiply
    47,140.12x = 70,693.17 × 13,851.28
  4. Step 4: Simplify right side
    47,140.12x = 979,190,891.76
  5. Step 5: Solve for x
    x = 979,190,891.76/47,140.12
  6. Step 6: Final answer
    x = 20,771.92

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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.