Home / 20,407.20-30,585.24-11,047.20

Finding the Fourth Proportional to 20,407.20, 30,585.24 and 11,047.20

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Solution

The fourth proportional to 20,407.20, 30,585.24 and 11,047.20 is: 16,556.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407.20 : 30,585.24 = 11,047.20 : x
  2. Step 2: Convert to fraction form
    20,407.20/30,585.24 = 11,047.20/x
  3. Step 3: Cross multiply
    20,407.20x = 30,585.24 × 11,047.20
  4. Step 4: Simplify right side
    20,407.20x = 337,881,263.33
  5. Step 5: Solve for x
    x = 337,881,263.33/20,407.20
  6. Step 6: Final answer
    x = 16,556.96

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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.