Home / 30,076.20-45,113.78-10,354.32

Finding the Fourth Proportional to 30,076.20, 45,113.78 and 10,354.32

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Solution

The fourth proportional to 30,076.20, 45,113.78 and 10,354.32 is: 15,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,076.20 : 45,113.78 = 10,354.32 : x
  2. Step 2: Convert to fraction form
    30,076.20/45,113.78 = 10,354.32/x
  3. Step 3: Cross multiply
    30,076.20x = 45,113.78 × 10,354.32
  4. Step 4: Simplify right side
    30,076.20x = 467,122,540.42
  5. Step 5: Solve for x
    x = 467,122,540.42/30,076.20
  6. Step 6: Final answer
    x = 15,531.30

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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.