Home / 22,420.10-30,939.74-12,348.52

Finding the Fourth Proportional to 22,420.10, 30,939.74 and 12,348.52

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Solution

The fourth proportional to 22,420.10, 30,939.74 and 12,348.52 is: 17,040.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.10 : 30,939.74 = 12,348.52 : x
  2. Step 2: Convert to fraction form
    22,420.10/30,939.74 = 12,348.52/x
  3. Step 3: Cross multiply
    22,420.10x = 30,939.74 × 12,348.52
  4. Step 4: Simplify right side
    22,420.10x = 382,059,998.18
  5. Step 5: Solve for x
    x = 382,059,998.18/22,420.10
  6. Step 6: Final answer
    x = 17,040.96

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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.