Home / 30,553.77-42,132.23-22,612.65

Finding the Fourth Proportional to 30,553.77, 42,132.23 and 22,612.65

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Solution

The fourth proportional to 30,553.77, 42,132.23 and 22,612.65 is: 31,181.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,553.77 : 42,132.23 = 22,612.65 : x
  2. Step 2: Convert to fraction form
    30,553.77/42,132.23 = 22,612.65/x
  3. Step 3: Cross multiply
    30,553.77x = 42,132.23 × 22,612.65
  4. Step 4: Simplify right side
    30,553.77x = 952,721,257.65
  5. Step 5: Solve for x
    x = 952,721,257.65/30,553.77
  6. Step 6: Final answer
    x = 31,181.79

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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.