Home / 22,271.87-30,716.10-15,886.29

Finding the Fourth Proportional to 22,271.87, 30,716.10 and 15,886.29

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Solution

The fourth proportional to 22,271.87, 30,716.10 and 15,886.29 is: 21,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,271.87 : 30,716.10 = 15,886.29 : x
  2. Step 2: Convert to fraction form
    22,271.87/30,716.10 = 15,886.29/x
  3. Step 3: Cross multiply
    22,271.87x = 30,716.10 × 15,886.29
  4. Step 4: Simplify right side
    22,271.87x = 487,964,872.27
  5. Step 5: Solve for x
    x = 487,964,872.27/22,271.87
  6. Step 6: Final answer
    x = 21,909.48

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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.