Home / 34,329.42-47,360.70-20,889.90

Finding the Fourth Proportional to 34,329.42, 47,360.70 and 20,889.90

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Solution

The fourth proportional to 34,329.42, 47,360.70 and 20,889.90 is: 28,819.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,329.42 : 47,360.70 = 20,889.90 : x
  2. Step 2: Convert to fraction form
    34,329.42/47,360.70 = 20,889.90/x
  3. Step 3: Cross multiply
    34,329.42x = 47,360.70 × 20,889.90
  4. Step 4: Simplify right side
    34,329.42x = 989,360,286.93
  5. Step 5: Solve for x
    x = 989,360,286.93/34,329.42
  6. Step 6: Final answer
    x = 28,819.60

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1.5x scale

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.