Home / 47,143.12-70,697.67-13,854.28

Finding the Fourth Proportional to 47,143.12, 70,697.67 and 13,854.28

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Solution

The fourth proportional to 47,143.12, 70,697.67 and 13,854.28 is: 20,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,143.12 : 70,697.67 = 13,854.28 : x
  2. Step 2: Convert to fraction form
    47,143.12/70,697.67 = 13,854.28/x
  3. Step 3: Cross multiply
    47,143.12x = 70,697.67 × 13,854.28
  4. Step 4: Simplify right side
    47,143.12x = 979,465,315.53
  5. Step 5: Solve for x
    x = 979,465,315.53/47,143.12
  6. Step 6: Final answer
    x = 20,776.42

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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.