Home / 28,325.62-39,087.75-15,750.10

Finding the Fourth Proportional to 28,325.62, 39,087.75 and 15,750.10

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Solution

The fourth proportional to 28,325.62, 39,087.75 and 15,750.10 is: 21,734.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.62 : 39,087.75 = 15,750.10 : x
  2. Step 2: Convert to fraction form
    28,325.62/39,087.75 = 15,750.10/x
  3. Step 3: Cross multiply
    28,325.62x = 39,087.75 × 15,750.10
  4. Step 4: Simplify right side
    28,325.62x = 615,635,971.28
  5. Step 5: Solve for x
    x = 615,635,971.28/28,325.62
  6. Step 6: Final answer
    x = 21,734.25

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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.