Home / 31,742.80-43,790.34-22,316.92

Finding the Fourth Proportional to 31,742.80, 43,790.34 and 22,316.92

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Solution

The fourth proportional to 31,742.80, 43,790.34 and 22,316.92 is: 30,787.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.80 : 43,790.34 = 22,316.92 : x
  2. Step 2: Convert to fraction form
    31,742.80/43,790.34 = 22,316.92/x
  3. Step 3: Cross multiply
    31,742.80x = 43,790.34 × 22,316.92
  4. Step 4: Simplify right side
    31,742.80x = 977,265,514.55
  5. Step 5: Solve for x
    x = 977,265,514.55/31,742.80
  6. Step 6: Final answer
    x = 30,787.00

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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.