Home / 39,626.13-54,685.90-21,722.50

Finding the Fourth Proportional to 39,626.13, 54,685.90 and 21,722.50

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Solution

The fourth proportional to 39,626.13, 54,685.90 and 21,722.50 is: 29,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,626.13 : 54,685.90 = 21,722.50 : x
  2. Step 2: Convert to fraction form
    39,626.13/54,685.90 = 21,722.50/x
  3. Step 3: Cross multiply
    39,626.13x = 54,685.90 × 21,722.50
  4. Step 4: Simplify right side
    39,626.13x = 1,187,914,462.75
  5. Step 5: Solve for x
    x = 1,187,914,462.75/39,626.13
  6. Step 6: Final answer
    x = 29,978.06

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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.