Home / 22,423.09-30,945.20-12,862.91

Finding the Fourth Proportional to 22,423.09, 30,945.20 and 12,862.91

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Solution

The fourth proportional to 22,423.09, 30,945.20 and 12,862.91 is: 17,751.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,423.09 : 30,945.20 = 12,862.91 : x
  2. Step 2: Convert to fraction form
    22,423.09/30,945.20 = 12,862.91/x
  3. Step 3: Cross multiply
    22,423.09x = 30,945.20 × 12,862.91
  4. Step 4: Simplify right side
    22,423.09x = 398,045,335.58
  5. Step 5: Solve for x
    x = 398,045,335.58/22,423.09
  6. Step 6: Final answer
    x = 17,751.58

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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.