Home / 20,287.01-30,394.17-12,385.46

Finding the Fourth Proportional to 20,287.01, 30,394.17 and 12,385.46

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Solution

The fourth proportional to 20,287.01, 30,394.17 and 12,385.46 is: 18,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287.01 : 30,394.17 = 12,385.46 : x
  2. Step 2: Convert to fraction form
    20,287.01/30,394.17 = 12,385.46/x
  3. Step 3: Cross multiply
    20,287.01x = 30,394.17 × 12,385.46
  4. Step 4: Simplify right side
    20,287.01x = 376,445,776.77
  5. Step 5: Solve for x
    x = 376,445,776.77/20,287.01
  6. Step 6: Final answer
    x = 18,556.00

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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.