Home / 31,742.18-43,789.48-22,316.30

Finding the Fourth Proportional to 31,742.18, 43,789.48 and 22,316.30

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Solution

The fourth proportional to 31,742.18, 43,789.48 and 22,316.30 is: 30,786.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.18 : 43,789.48 = 22,316.30 : x
  2. Step 2: Convert to fraction form
    31,742.18/43,789.48 = 22,316.30/x
  3. Step 3: Cross multiply
    31,742.18x = 43,789.48 × 22,316.30
  4. Step 4: Simplify right side
    31,742.18x = 977,218,897.79
  5. Step 5: Solve for x
    x = 977,218,897.79/31,742.18
  6. Step 6: Final answer
    x = 30,786.14

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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.