Home / 22,726.78-31,363.04-12,655.19

Finding the Fourth Proportional to 22,726.78, 31,363.04 and 12,655.19

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Solution

The fourth proportional to 22,726.78, 31,363.04 and 12,655.19 is: 17,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,726.78 : 31,363.04 = 12,655.19 : x
  2. Step 2: Convert to fraction form
    22,726.78/31,363.04 = 12,655.19/x
  3. Step 3: Cross multiply
    22,726.78x = 31,363.04 × 12,655.19
  4. Step 4: Simplify right side
    22,726.78x = 396,905,230.18
  5. Step 5: Solve for x
    x = 396,905,230.18/22,726.78
  6. Step 6: Final answer
    x = 17,464.21

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Half scale
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Double 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.