Home / 20,332.16-28,058.52-11,380.49

Finding the Fourth Proportional to 20,332.16, 28,058.52 and 11,380.49

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Solution

The fourth proportional to 20,332.16, 28,058.52 and 11,380.49 is: 15,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.16 : 28,058.52 = 11,380.49 : x
  2. Step 2: Convert to fraction form
    20,332.16/28,058.52 = 11,380.49/x
  3. Step 3: Cross multiply
    20,332.16x = 28,058.52 × 11,380.49
  4. Step 4: Simplify right side
    20,332.16x = 319,319,706.27
  5. Step 5: Solve for x
    x = 319,319,706.27/20,332.16
  6. Step 6: Final answer
    x = 15,705.15

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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.