Home / 22,461.69-30,995.66-12,390.20

Finding the Fourth Proportional to 22,461.69, 30,995.66 and 12,390.20

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Solution

The fourth proportional to 22,461.69, 30,995.66 and 12,390.20 is: 17,097.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,461.69 : 30,995.66 = 12,390.20 : x
  2. Step 2: Convert to fraction form
    22,461.69/30,995.66 = 12,390.20/x
  3. Step 3: Cross multiply
    22,461.69x = 30,995.66 × 12,390.20
  4. Step 4: Simplify right side
    22,461.69x = 384,042,302.53
  5. Step 5: Solve for x
    x = 384,042,302.53/22,461.69
  6. Step 6: Final answer
    x = 17,097.66

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Half scale
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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.