Home / 20,332.17-28,058.94-11,381.22

Finding the Fourth Proportional to 20,332.17, 28,058.94 and 11,381.22

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Solution

The fourth proportional to 20,332.17, 28,058.94 and 11,381.22 is: 15,706.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,332.17 : 28,058.94 = 11,381.22 : x
  2. Step 2: Convert to fraction form
    20,332.17/28,058.94 = 11,381.22/x
  3. Step 3: Cross multiply
    20,332.17x = 28,058.94 × 11,381.22
  4. Step 4: Simplify right side
    20,332.17x = 319,344,969.11
  5. Step 5: Solve for x
    x = 319,344,969.11/20,332.17
  6. Step 6: Final answer
    x = 15,706.39

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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.