Home / 22,295.88-30,769.74-12,864.36

Finding the Fourth Proportional to 22,295.88, 30,769.74 and 12,864.36

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Solution

The fourth proportional to 22,295.88, 30,769.74 and 12,864.36 is: 17,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,295.88 : 30,769.74 = 12,864.36 : x
  2. Step 2: Convert to fraction form
    22,295.88/30,769.74 = 12,864.36/x
  3. Step 3: Cross multiply
    22,295.88x = 30,769.74 × 12,864.36
  4. Step 4: Simplify right side
    22,295.88x = 395,833,012.47
  5. Step 5: Solve for x
    x = 395,833,012.47/22,295.88
  6. Step 6: Final answer
    x = 17,753.64

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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.