Home / 39,414.17-54,386.77-22,420.57

Finding the Fourth Proportional to 39,414.17, 54,386.77 and 22,420.57

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Solution

The fourth proportional to 39,414.17, 54,386.77 and 22,420.57 is: 30,937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,414.17 : 54,386.77 = 22,420.57 : x
  2. Step 2: Convert to fraction form
    39,414.17/54,386.77 = 22,420.57/x
  3. Step 3: Cross multiply
    39,414.17x = 54,386.77 × 22,420.57
  4. Step 4: Simplify right side
    39,414.17x = 1,219,382,383.86
  5. Step 5: Solve for x
    x = 1,219,382,383.86/39,414.17
  6. Step 6: Final answer
    x = 30,937.66

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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.