Home / 47,378.40-71,065.68-21,076.32

Finding the Fourth Proportional to 47,378.40, 71,065.68 and 21,076.32

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Solution

The fourth proportional to 47,378.40, 71,065.68 and 21,076.32 is: 31,613.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,378.40 : 71,065.68 = 21,076.32 : x
  2. Step 2: Convert to fraction form
    47,378.40/71,065.68 = 21,076.32/x
  3. Step 3: Cross multiply
    47,378.40x = 71,065.68 × 21,076.32
  4. Step 4: Simplify right side
    47,378.40x = 1,497,803,012.70
  5. Step 5: Solve for x
    x = 1,497,803,012.70/47,378.40
  6. Step 6: Final answer
    x = 31,613.63

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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.