Home / 22,276.17-30,781.67-21,196.49

Finding the Fourth Proportional to 22,276.17, 30,781.67 and 21,196.49

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Solution

The fourth proportional to 22,276.17, 30,781.67 and 21,196.49 is: 29,289.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.17 : 30,781.67 = 21,196.49 : x
  2. Step 2: Convert to fraction form
    22,276.17/30,781.67 = 21,196.49/x
  3. Step 3: Cross multiply
    22,276.17x = 30,781.67 × 21,196.49
  4. Step 4: Simplify right side
    22,276.17x = 652,463,254.36
  5. Step 5: Solve for x
    x = 652,463,254.36/22,276.17
  6. Step 6: Final answer
    x = 29,289.74

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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.