Home / 31,394.39-43,309.28-22,878.25

Finding the Fourth Proportional to 31,394.39, 43,309.28 and 22,878.25

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Solution

The fourth proportional to 31,394.39, 43,309.28 and 22,878.25 is: 31,561.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,394.39 : 43,309.28 = 22,878.25 : x
  2. Step 2: Convert to fraction form
    31,394.39/43,309.28 = 22,878.25/x
  3. Step 3: Cross multiply
    31,394.39x = 43,309.28 × 22,878.25
  4. Step 4: Simplify right side
    31,394.39x = 990,840,484.08
  5. Step 5: Solve for x
    x = 990,840,484.08/31,394.39
  6. Step 6: Final answer
    x = 31,561.07

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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.