Home / 10,020.75-15,030.20-2,625.05

Finding the Fourth Proportional to 10,020.75, 15,030.20 and 2,625.05

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Solution

The fourth proportional to 10,020.75, 15,030.20 and 2,625.05 is: 3,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020.75 : 15,030.20 = 2,625.05 : x
  2. Step 2: Convert to fraction form
    10,020.75/15,030.20 = 2,625.05/x
  3. Step 3: Cross multiply
    10,020.75x = 15,030.20 × 2,625.05
  4. Step 4: Simplify right side
    10,020.75x = 39,454,938.23
  5. Step 5: Solve for x
    x = 39,454,938.23/10,020.75
  6. Step 6: Final answer
    x = 3,937.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.