Home / 38,108.90-52,590.17-21,976.13

Finding the Fourth Proportional to 38,108.90, 52,590.17 and 21,976.13

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Solution

The fourth proportional to 38,108.90, 52,590.17 and 21,976.13 is: 30,326.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,108.90 : 52,590.17 = 21,976.13 : x
  2. Step 2: Convert to fraction form
    38,108.90/52,590.17 = 21,976.13/x
  3. Step 3: Cross multiply
    38,108.90x = 52,590.17 × 21,976.13
  4. Step 4: Simplify right side
    38,108.90x = 1,155,728,039.81
  5. Step 5: Solve for x
    x = 1,155,728,039.81/38,108.90
  6. Step 6: Final answer
    x = 30,326.99

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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.