Home / 30,095.20-41,488.10-21,114.88

Finding the Fourth Proportional to 30,095.20, 41,488.10 and 21,114.88

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Solution

The fourth proportional to 30,095.20, 41,488.10 and 21,114.88 is: 29,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,095.20 : 41,488.10 = 21,114.88 : x
  2. Step 2: Convert to fraction form
    30,095.20/41,488.10 = 21,114.88/x
  3. Step 3: Cross multiply
    30,095.20x = 41,488.10 × 21,114.88
  4. Step 4: Simplify right side
    30,095.20x = 876,016,252.93
  5. Step 5: Solve for x
    x = 876,016,252.93/30,095.20
  6. Step 6: Final answer
    x = 29,108.17

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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.