Home / 20,585.30-28,407.42-11,632.72

Finding the Fourth Proportional to 20,585.30, 28,407.42 and 11,632.72

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Solution

The fourth proportional to 20,585.30, 28,407.42 and 11,632.72 is: 16,052.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,585.30 : 28,407.42 = 11,632.72 : x
  2. Step 2: Convert to fraction form
    20,585.30/28,407.42 = 11,632.72/x
  3. Step 3: Cross multiply
    20,585.30x = 28,407.42 × 11,632.72
  4. Step 4: Simplify right side
    20,585.30x = 330,455,562.78
  5. Step 5: Solve for x
    x = 330,455,562.78/20,585.30
  6. Step 6: Final answer
    x = 16,052.99

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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.