Home / 31,646.57-43,651.68-20,298.08

Finding the Fourth Proportional to 31,646.57, 43,651.68 and 20,298.08

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Solution

The fourth proportional to 31,646.57, 43,651.68 and 20,298.08 is: 27,998.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,646.57 : 43,651.68 = 20,298.08 : x
  2. Step 2: Convert to fraction form
    31,646.57/43,651.68 = 20,298.08/x
  3. Step 3: Cross multiply
    31,646.57x = 43,651.68 × 20,298.08
  4. Step 4: Simplify right side
    31,646.57x = 886,044,973.03
  5. Step 5: Solve for x
    x = 886,044,973.03/31,646.57
  6. Step 6: Final answer
    x = 27,998.14

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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.