Home / 30,061.54-41,498.69-21,454.28

Finding the Fourth Proportional to 30,061.54, 41,498.69 and 21,454.28

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Solution

The fourth proportional to 30,061.54, 41,498.69 and 21,454.28 is: 29,616.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,061.54 : 41,498.69 = 21,454.28 : x
  2. Step 2: Convert to fraction form
    30,061.54/41,498.69 = 21,454.28/x
  3. Step 3: Cross multiply
    30,061.54x = 41,498.69 × 21,454.28
  4. Step 4: Simplify right side
    30,061.54x = 890,324,200.13
  5. Step 5: Solve for x
    x = 890,324,200.13/30,061.54
  6. Step 6: Final answer
    x = 29,616.72

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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.