Home / 39,705.75-54,778.29-22,700.85

Finding the Fourth Proportional to 39,705.75, 54,778.29 and 22,700.85

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Solution

The fourth proportional to 39,705.75, 54,778.29 and 22,700.85 is: 31,318.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,705.75 : 54,778.29 = 22,700.85 : x
  2. Step 2: Convert to fraction form
    39,705.75/54,778.29 = 22,700.85/x
  3. Step 3: Cross multiply
    39,705.75x = 54,778.29 × 22,700.85
  4. Step 4: Simplify right side
    39,705.75x = 1,243,513,744.55
  5. Step 5: Solve for x
    x = 1,243,513,744.55/39,705.75
  6. Step 6: Final answer
    x = 31,318.23

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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.