Home / 39,460.28-54,454.98-21,555.08

Finding the Fourth Proportional to 39,460.28, 54,454.98 and 21,555.08

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Solution

The fourth proportional to 39,460.28, 54,454.98 and 21,555.08 is: 29,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,460.28 : 54,454.98 = 21,555.08 : x
  2. Step 2: Convert to fraction form
    39,460.28/54,454.98 = 21,555.08/x
  3. Step 3: Cross multiply
    39,460.28x = 54,454.98 × 21,555.08
  4. Step 4: Simplify right side
    39,460.28x = 1,173,781,450.30
  5. Step 5: Solve for x
    x = 1,173,781,450.30/39,460.28
  6. Step 6: Final answer
    x = 29,745.90

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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.