Home / 22,724.81-31,353.91-13,647.75

Finding the Fourth Proportional to 22,724.81, 31,353.91 and 13,647.75

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Solution

The fourth proportional to 22,724.81, 31,353.91 and 13,647.75 is: 18,830.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,724.81 : 31,353.91 = 13,647.75 : x
  2. Step 2: Convert to fraction form
    22,724.81/31,353.91 = 13,647.75/x
  3. Step 3: Cross multiply
    22,724.81x = 31,353.91 × 13,647.75
  4. Step 4: Simplify right side
    22,724.81x = 427,910,325.20
  5. Step 5: Solve for x
    x = 427,910,325.20/22,724.81
  6. Step 6: Final answer
    x = 18,830.09

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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.