Home / 22,235.19-30,679.40-13,280.91

Finding the Fourth Proportional to 22,235.19, 30,679.40 and 13,280.91

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Solution

The fourth proportional to 22,235.19, 30,679.40 and 13,280.91 is: 18,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,235.19 : 30,679.40 = 13,280.91 : x
  2. Step 2: Convert to fraction form
    22,235.19/30,679.40 = 13,280.91/x
  3. Step 3: Cross multiply
    22,235.19x = 30,679.40 × 13,280.91
  4. Step 4: Simplify right side
    22,235.19x = 407,450,283.85
  5. Step 5: Solve for x
    x = 407,450,283.85/22,235.19
  6. Step 6: Final answer
    x = 18,324.57

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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.