Home / 39,971.10-55,160.31-22,065.78

Finding the Fourth Proportional to 39,971.10, 55,160.31 and 22,065.78

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Solution

The fourth proportional to 39,971.10, 55,160.31 and 22,065.78 is: 30,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,971.10 : 55,160.31 = 22,065.78 : x
  2. Step 2: Convert to fraction form
    39,971.10/55,160.31 = 22,065.78/x
  3. Step 3: Cross multiply
    39,971.10x = 55,160.31 × 22,065.78
  4. Step 4: Simplify right side
    39,971.10x = 1,217,155,265.19
  5. Step 5: Solve for x
    x = 1,217,155,265.19/39,971.10
  6. Step 6: Final answer
    x = 30,450.88

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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.