Home / 30,130.32-45,180.90-10,401.96

Finding the Fourth Proportional to 30,130.32, 45,180.90 and 10,401.96

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Solution

The fourth proportional to 30,130.32, 45,180.90 and 10,401.96 is: 15,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.32 : 45,180.90 = 10,401.96 : x
  2. Step 2: Convert to fraction form
    30,130.32/45,180.90 = 10,401.96/x
  3. Step 3: Cross multiply
    30,130.32x = 45,180.90 × 10,401.96
  4. Step 4: Simplify right side
    30,130.32x = 469,969,914.56
  5. Step 5: Solve for x
    x = 469,969,914.56/30,130.32
  6. Step 6: Final answer
    x = 15,597.91

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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.