Home / 39,454.30-54,446.93-21,549.35

Finding the Fourth Proportional to 39,454.30, 54,446.93 and 21,549.35

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Solution

The fourth proportional to 39,454.30, 54,446.93 and 21,549.35 is: 29,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,454.30 : 54,446.93 = 21,549.35 : x
  2. Step 2: Convert to fraction form
    39,454.30/54,446.93 = 21,549.35/x
  3. Step 3: Cross multiply
    39,454.30x = 54,446.93 × 21,549.35
  4. Step 4: Simplify right side
    39,454.30x = 1,173,295,651.82
  5. Step 5: Solve for x
    x = 1,173,295,651.82/39,454.30
  6. Step 6: Final answer
    x = 29,738.10

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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.