Home / 22,204.72-30,649.08-12,779.92

Finding the Fourth Proportional to 22,204.72, 30,649.08 and 12,779.92

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Solution

The fourth proportional to 22,204.72, 30,649.08 and 12,779.92 is: 17,640.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,204.72 : 30,649.08 = 12,779.92 : x
  2. Step 2: Convert to fraction form
    22,204.72/30,649.08 = 12,779.92/x
  3. Step 3: Cross multiply
    22,204.72x = 30,649.08 × 12,779.92
  4. Step 4: Simplify right side
    22,204.72x = 391,692,790.47
  5. Step 5: Solve for x
    x = 391,692,790.47/22,204.72
  6. Step 6: Final answer
    x = 17,640.07

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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.