Home / 20,332.02-28,058.34-11,380.35

Finding the Fourth Proportional to 20,332.02, 28,058.34 and 11,380.35

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Solution

The fourth proportional to 20,332.02, 28,058.34 and 11,380.35 is: 15,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.02 : 28,058.34 = 11,380.35 : x
  2. Step 2: Convert to fraction form
    20,332.02/28,058.34 = 11,380.35/x
  3. Step 3: Cross multiply
    20,332.02x = 28,058.34 × 11,380.35
  4. Step 4: Simplify right side
    20,332.02x = 319,313,729.62
  5. Step 5: Solve for x
    x = 319,313,729.62/20,332.02
  6. Step 6: Final answer
    x = 15,704.97

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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.