Home / 22,103.28-30,490.43-15,378.26

Finding the Fourth Proportional to 22,103.28, 30,490.43 and 15,378.26

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Solution

The fourth proportional to 22,103.28, 30,490.43 and 15,378.26 is: 21,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,103.28 : 30,490.43 = 15,378.26 : x
  2. Step 2: Convert to fraction form
    22,103.28/30,490.43 = 15,378.26/x
  3. Step 3: Cross multiply
    22,103.28x = 30,490.43 × 15,378.26
  4. Step 4: Simplify right side
    22,103.28x = 468,889,530.71
  5. Step 5: Solve for x
    x = 468,889,530.71/22,103.28
  6. Step 6: Final answer
    x = 21,213.57

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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.