Home / 22,723.72-31,356.98-13,291.40

Finding the Fourth Proportional to 22,723.72, 31,356.98 and 13,291.40

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Solution

The fourth proportional to 22,723.72, 31,356.98 and 13,291.40 is: 18,341.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,723.72 : 31,356.98 = 13,291.40 : x
  2. Step 2: Convert to fraction form
    22,723.72/31,356.98 = 13,291.40/x
  3. Step 3: Cross multiply
    22,723.72x = 31,356.98 × 13,291.40
  4. Step 4: Simplify right side
    22,723.72x = 416,778,163.97
  5. Step 5: Solve for x
    x = 416,778,163.97/22,723.72
  6. Step 6: Final answer
    x = 18,341.11

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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.