Home / 30,278.89-45,401.86-10,552.15

Finding the Fourth Proportional to 30,278.89, 45,401.86 and 10,552.15

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Solution

The fourth proportional to 30,278.89, 45,401.86 and 10,552.15 is: 15,822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.89 : 45,401.86 = 10,552.15 : x
  2. Step 2: Convert to fraction form
    30,278.89/45,401.86 = 10,552.15/x
  3. Step 3: Cross multiply
    30,278.89x = 45,401.86 × 10,552.15
  4. Step 4: Simplify right side
    30,278.89x = 479,087,237.00
  5. Step 5: Solve for x
    x = 479,087,237.00/30,278.89
  6. Step 6: Final answer
    x = 15,822.48

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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.