Home / 39,338.17-54,285.98-21,433.30

Finding the Fourth Proportional to 39,338.17, 54,285.98 and 21,433.30

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Solution

The fourth proportional to 39,338.17, 54,285.98 and 21,433.30 is: 29,577.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,338.17 : 54,285.98 = 21,433.30 : x
  2. Step 2: Convert to fraction form
    39,338.17/54,285.98 = 21,433.30/x
  3. Step 3: Cross multiply
    39,338.17x = 54,285.98 × 21,433.30
  4. Step 4: Simplify right side
    39,338.17x = 1,163,527,816.57
  5. Step 5: Solve for x
    x = 1,163,527,816.57/39,338.17
  6. Step 6: Final answer
    x = 29,577.58

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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.