Home / 39,545.06-54,571.46-21,639.74

Finding the Fourth Proportional to 39,545.06, 54,571.46 and 21,639.74

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Solution

The fourth proportional to 39,545.06, 54,571.46 and 21,639.74 is: 29,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,545.06 : 54,571.46 = 21,639.74 : x
  2. Step 2: Convert to fraction form
    39,545.06/54,571.46 = 21,639.74/x
  3. Step 3: Cross multiply
    39,545.06x = 54,571.46 × 21,639.74
  4. Step 4: Simplify right side
    39,545.06x = 1,180,912,205.82
  5. Step 5: Solve for x
    x = 1,180,912,205.82/39,545.06
  6. Step 6: Final answer
    x = 29,862.45

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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.