Home / 20,292-28,002.96-12,332.75

Finding the Fourth Proportional to 20,292, 28,002.96 and 12,332.75

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Solution

The fourth proportional to 20,292, 28,002.96 and 12,332.75 is: 17,019.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,292 : 28,002.96 = 12,332.75 : x
  2. Step 2: Convert to fraction form
    20,292/28,002.96 = 12,332.75/x
  3. Step 3: Cross multiply
    20,292x = 28,002.96 × 12,332.75
  4. Step 4: Simplify right side
    20,292x = 345,353,364.93
  5. Step 5: Solve for x
    x = 345,353,364.93/20,292
  6. Step 6: Final answer
    x = 17,019.19

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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.