Home / 22,695.27-31,319.91-13,269.30

Finding the Fourth Proportional to 22,695.27, 31,319.91 and 13,269.30

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Solution

The fourth proportional to 22,695.27, 31,319.91 and 13,269.30 is: 18,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,695.27 : 31,319.91 = 13,269.30 : x
  2. Step 2: Convert to fraction form
    22,695.27/31,319.91 = 13,269.30/x
  3. Step 3: Cross multiply
    22,695.27x = 31,319.91 × 13,269.30
  4. Step 4: Simplify right side
    22,695.27x = 415,593,281.76
  5. Step 5: Solve for x
    x = 415,593,281.76/22,695.27
  6. Step 6: Final answer
    x = 18,311.89

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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.