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Finding the Fourth Proportional to 30,040.88, 45,061.92 and 9,264.38

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Solution

The fourth proportional to 30,040.88, 45,061.92 and 9,264.38 is: 13,896.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,040.88 : 45,061.92 = 9,264.38 : x
  2. Step 2: Convert to fraction form
    30,040.88/45,061.92 = 9,264.38/x
  3. Step 3: Cross multiply
    30,040.88x = 45,061.92 × 9,264.38
  4. Step 4: Simplify right side
    30,040.88x = 417,470,525.10
  5. Step 5: Solve for x
    x = 417,470,525.10/30,040.88
  6. Step 6: Final answer
    x = 13,896.75

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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.