Home / 20,582.91-30,887.12-9,491.18

Finding the Fourth Proportional to 20,582.91, 30,887.12 and 9,491.18

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Solution

The fourth proportional to 20,582.91, 30,887.12 and 9,491.18 is: 14,242.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,582.91 : 30,887.12 = 9,491.18 : x
  2. Step 2: Convert to fraction form
    20,582.91/30,887.12 = 9,491.18/x
  3. Step 3: Cross multiply
    20,582.91x = 30,887.12 × 9,491.18
  4. Step 4: Simplify right side
    20,582.91x = 293,155,084.89
  5. Step 5: Solve for x
    x = 293,155,084.89/20,582.91
  6. Step 6: Final answer
    x = 14,242.65

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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.