Home / 30,129.82-45,180.15-10,401.46

Finding the Fourth Proportional to 30,129.82, 45,180.15 and 10,401.46

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Solution

The fourth proportional to 30,129.82, 45,180.15 and 10,401.46 is: 15,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,129.82 : 45,180.15 = 10,401.46 : x
  2. Step 2: Convert to fraction form
    30,129.82/45,180.15 = 10,401.46/x
  3. Step 3: Cross multiply
    30,129.82x = 45,180.15 × 10,401.46
  4. Step 4: Simplify right side
    30,129.82x = 469,939,523.02
  5. Step 5: Solve for x
    x = 469,939,523.02/30,129.82
  6. Step 6: Final answer
    x = 15,597.16

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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.