Home / 47,338.64-70,990.24-20,317.57

Finding the Fourth Proportional to 47,338.64, 70,990.24 and 20,317.57

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Solution

The fourth proportional to 47,338.64, 70,990.24 and 20,317.57 is: 30,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,338.64 : 70,990.24 = 20,317.57 : x
  2. Step 2: Convert to fraction form
    47,338.64/70,990.24 = 20,317.57/x
  3. Step 3: Cross multiply
    47,338.64x = 70,990.24 × 20,317.57
  4. Step 4: Simplify right side
    47,338.64x = 1,442,349,170.52
  5. Step 5: Solve for x
    x = 1,442,349,170.52/47,338.64
  6. Step 6: Final answer
    x = 30,468.75

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1.5x scale

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.