Home / 28,402.19-42,604.10-7,625.69

Finding the Fourth Proportional to 28,402.19, 42,604.10 and 7,625.69

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Solution

The fourth proportional to 28,402.19, 42,604.10 and 7,625.69 is: 11,438.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,402.19 : 42,604.10 = 7,625.69 : x
  2. Step 2: Convert to fraction form
    28,402.19/42,604.10 = 7,625.69/x
  3. Step 3: Cross multiply
    28,402.19x = 42,604.10 × 7,625.69
  4. Step 4: Simplify right side
    28,402.19x = 324,885,659.33
  5. Step 5: Solve for x
    x = 324,885,659.33/28,402.19
  6. Step 6: Final answer
    x = 11,438.75

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1.5x scale

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.