Home / 22,265.24-30,721.42-13,309.40

Finding the Fourth Proportional to 22,265.24, 30,721.42 and 13,309.40

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Solution

The fourth proportional to 22,265.24, 30,721.42 and 13,309.40 is: 18,364.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265.24 : 30,721.42 = 13,309.40 : x
  2. Step 2: Convert to fraction form
    22,265.24/30,721.42 = 13,309.40/x
  3. Step 3: Cross multiply
    22,265.24x = 30,721.42 × 13,309.40
  4. Step 4: Simplify right side
    22,265.24x = 408,883,667.35
  5. Step 5: Solve for x
    x = 408,883,667.35/22,265.24
  6. Step 6: Final answer
    x = 18,364.22

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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.