Home / 39,981.31-55,175.07-22,077.46

Finding the Fourth Proportional to 39,981.31, 55,175.07 and 22,077.46

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Solution

The fourth proportional to 39,981.31, 55,175.07 and 22,077.46 is: 30,467.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,981.31 : 55,175.07 = 22,077.46 : x
  2. Step 2: Convert to fraction form
    39,981.31/55,175.07 = 22,077.46/x
  3. Step 3: Cross multiply
    39,981.31x = 55,175.07 × 22,077.46
  4. Step 4: Simplify right side
    39,981.31x = 1,218,125,400.92
  5. Step 5: Solve for x
    x = 1,218,125,400.92/39,981.31
  6. Step 6: Final answer
    x = 30,467.37

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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.