Home / 20,291.50-28,002.27-12,332.24

Finding the Fourth Proportional to 20,291.50, 28,002.27 and 12,332.24

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Solution

The fourth proportional to 20,291.50, 28,002.27 and 12,332.24 is: 17,018.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.50 : 28,002.27 = 12,332.24 : x
  2. Step 2: Convert to fraction form
    20,291.50/28,002.27 = 12,332.24/x
  3. Step 3: Cross multiply
    20,291.50x = 28,002.27 × 12,332.24
  4. Step 4: Simplify right side
    20,291.50x = 345,330,714.18
  5. Step 5: Solve for x
    x = 345,330,714.18/20,291.50
  6. Step 6: Final answer
    x = 17,018.49

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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.