Home / 31,442.19-43,393.10-18,017.79

Finding the Fourth Proportional to 31,442.19, 43,393.10 and 18,017.79

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Solution

The fourth proportional to 31,442.19, 43,393.10 and 18,017.79 is: 24,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.19 : 43,393.10 = 18,017.79 : x
  2. Step 2: Convert to fraction form
    31,442.19/43,393.10 = 18,017.79/x
  3. Step 3: Cross multiply
    31,442.19x = 43,393.10 × 18,017.79
  4. Step 4: Simplify right side
    31,442.19x = 781,847,673.16
  5. Step 5: Solve for x
    x = 781,847,673.16/31,442.19
  6. Step 6: Final answer
    x = 24,866.20

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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.