Home / 20,191.40-30,276.30-7,044.20

Finding the Fourth Proportional to 20,191.40, 30,276.30 and 7,044.20

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Solution

The fourth proportional to 20,191.40, 30,276.30 and 7,044.20 is: 10,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.40 : 30,276.30 = 7,044.20 : x
  2. Step 2: Convert to fraction form
    20,191.40/30,276.30 = 7,044.20/x
  3. Step 3: Cross multiply
    20,191.40x = 30,276.30 × 7,044.20
  4. Step 4: Simplify right side
    20,191.40x = 213,272,312.46
  5. Step 5: Solve for x
    x = 213,272,312.46/20,191.40
  6. Step 6: Final answer
    x = 10,562.53

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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.