Home / 28,025.50-38,676-15,451.06

Finding the Fourth Proportional to 28,025.50, 38,676 and 15,451.06

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Solution

The fourth proportional to 28,025.50, 38,676 and 15,451.06 is: 21,322.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.50 : 38,676 = 15,451.06 : x
  2. Step 2: Convert to fraction form
    28,025.50/38,676 = 15,451.06/x
  3. Step 3: Cross multiply
    28,025.50x = 38,676 × 15,451.06
  4. Step 4: Simplify right side
    28,025.50x = 597,585,196.56
  5. Step 5: Solve for x
    x = 597,585,196.56/28,025.50
  6. Step 6: Final answer
    x = 21,322.91

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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.