Home / 22,281.35-30,747.38-13,323.51

Finding the Fourth Proportional to 22,281.35, 30,747.38 and 13,323.51

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Solution

The fourth proportional to 22,281.35, 30,747.38 and 13,323.51 is: 18,385.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,281.35 : 30,747.38 = 13,323.51 : x
  2. Step 2: Convert to fraction form
    22,281.35/30,747.38 = 13,323.51/x
  3. Step 3: Cross multiply
    22,281.35x = 30,747.38 × 13,323.51
  4. Step 4: Simplify right side
    22,281.35x = 409,662,958.29
  5. Step 5: Solve for x
    x = 409,662,958.29/22,281.35
  6. Step 6: Final answer
    x = 18,385.92

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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.