Home / 29,152.40-43,690.20-20,934.80

Finding the Fourth Proportional to 29,152.40, 43,690.20 and 20,934.80

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Solution

The fourth proportional to 29,152.40, 43,690.20 and 20,934.80 is: 31,374.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,152.40 : 43,690.20 = 20,934.80 : x
  2. Step 2: Convert to fraction form
    29,152.40/43,690.20 = 20,934.80/x
  3. Step 3: Cross multiply
    29,152.40x = 43,690.20 × 20,934.80
  4. Step 4: Simplify right side
    29,152.40x = 914,645,598.96
  5. Step 5: Solve for x
    x = 914,645,598.96/29,152.40
  6. Step 6: Final answer
    x = 31,374.62

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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.