Home / 20,332.22-28,057.15-11,256.98

Finding the Fourth Proportional to 20,332.22, 28,057.15 and 11,256.98

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Solution

The fourth proportional to 20,332.22, 28,057.15 and 11,256.98 is: 15,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.22 : 28,057.15 = 11,256.98 : x
  2. Step 2: Convert to fraction form
    20,332.22/28,057.15 = 11,256.98/x
  3. Step 3: Cross multiply
    20,332.22x = 28,057.15 × 11,256.98
  4. Step 4: Simplify right side
    20,332.22x = 315,838,650.19
  5. Step 5: Solve for x
    x = 315,838,650.19/20,332.22
  6. Step 6: Final answer
    x = 15,533.90

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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.