Home / 39,460.15-54,454.33-21,554.70

Finding the Fourth Proportional to 39,460.15, 54,454.33 and 21,554.70

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Solution

The fourth proportional to 39,460.15, 54,454.33 and 21,554.70 is: 29,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,460.15 : 54,454.33 = 21,554.70 : x
  2. Step 2: Convert to fraction form
    39,460.15/54,454.33 = 21,554.70/x
  3. Step 3: Cross multiply
    39,460.15x = 54,454.33 × 21,554.70
  4. Step 4: Simplify right side
    39,460.15x = 1,173,746,448.35
  5. Step 5: Solve for x
    x = 1,173,746,448.35/39,460.15
  6. Step 6: Final answer
    x = 29,745.11

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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.