Home / 31,644.19-43,663.08-18,216.01

Finding the Fourth Proportional to 31,644.19, 43,663.08 and 18,216.01

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Solution

The fourth proportional to 31,644.19, 43,663.08 and 18,216.01 is: 25,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,644.19 : 43,663.08 = 18,216.01 : x
  2. Step 2: Convert to fraction form
    31,644.19/43,663.08 = 18,216.01/x
  3. Step 3: Cross multiply
    31,644.19x = 43,663.08 × 18,216.01
  4. Step 4: Simplify right side
    31,644.19x = 795,367,101.91
  5. Step 5: Solve for x
    x = 795,367,101.91/31,644.19
  6. Step 6: Final answer
    x = 25,134.70

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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.