Home / 28,025.55-38,674.05-15,278.42

Finding the Fourth Proportional to 28,025.55, 38,674.05 and 15,278.42

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Solution

The fourth proportional to 28,025.55, 38,674.05 and 15,278.42 is: 21,083.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.55 : 38,674.05 = 15,278.42 : x
  2. Step 2: Convert to fraction form
    28,025.55/38,674.05 = 15,278.42/x
  3. Step 3: Cross multiply
    28,025.55x = 38,674.05 × 15,278.42
  4. Step 4: Simplify right side
    28,025.55x = 590,878,282.32
  5. Step 5: Solve for x
    x = 590,878,282.32/28,025.55
  6. Step 6: Final answer
    x = 21,083.56

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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.