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Finding the Fourth Proportional to 39,450.76, 54,441.76 and 21,545.77

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Solution

The fourth proportional to 39,450.76, 54,441.76 and 21,545.77 is: 29,733.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,450.76 : 54,441.76 = 21,545.77 : x
  2. Step 2: Convert to fraction form
    39,450.76/54,441.76 = 21,545.77/x
  3. Step 3: Cross multiply
    39,450.76x = 54,441.76 × 21,545.77
  4. Step 4: Simplify right side
    39,450.76x = 1,172,989,639.36
  5. Step 5: Solve for x
    x = 1,172,989,639.36/39,450.76
  6. Step 6: Final answer
    x = 29,733.00

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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.