Home / 22,434.36-30,954.78-15,358.20

Finding the Fourth Proportional to 22,434.36, 30,954.78 and 15,358.20

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Solution

The fourth proportional to 22,434.36, 30,954.78 and 15,358.20 is: 21,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,434.36 : 30,954.78 = 15,358.20 : x
  2. Step 2: Convert to fraction form
    22,434.36/30,954.78 = 15,358.20/x
  3. Step 3: Cross multiply
    22,434.36x = 30,954.78 × 15,358.20
  4. Step 4: Simplify right side
    22,434.36x = 475,409,702.20
  5. Step 5: Solve for x
    x = 475,409,702.20/22,434.36
  6. Step 6: Final answer
    x = 21,191.14

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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.