Home / 30,018.30-41,425.38-16,406.61

Finding the Fourth Proportional to 30,018.30, 41,425.38 and 16,406.61

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Solution

The fourth proportional to 30,018.30, 41,425.38 and 16,406.61 is: 22,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,018.30 : 41,425.38 = 16,406.61 : x
  2. Step 2: Convert to fraction form
    30,018.30/41,425.38 = 16,406.61/x
  3. Step 3: Cross multiply
    30,018.30x = 41,425.38 × 16,406.61
  4. Step 4: Simplify right side
    30,018.30x = 679,650,116.31
  5. Step 5: Solve for x
    x = 679,650,116.31/30,018.30
  6. Step 6: Final answer
    x = 22,641.20

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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.