Home / 22,442.19-30,968.91-12,879.87

Finding the Fourth Proportional to 22,442.19, 30,968.91 and 12,879.87

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Solution

The fourth proportional to 22,442.19, 30,968.91 and 12,879.87 is: 17,773.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,442.19 : 30,968.91 = 12,879.87 : x
  2. Step 2: Convert to fraction form
    22,442.19/30,968.91 = 12,879.87/x
  3. Step 3: Cross multiply
    22,442.19x = 30,968.91 × 12,879.87
  4. Step 4: Simplify right side
    22,442.19x = 398,875,534.84
  5. Step 5: Solve for x
    x = 398,875,534.84/22,442.19
  6. Step 6: Final answer
    x = 17,773.47

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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.