Home / 30,112.16-45,168.27-9,052.20

Finding the Fourth Proportional to 30,112.16, 45,168.27 and 9,052.20

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Solution

The fourth proportional to 30,112.16, 45,168.27 and 9,052.20 is: 13,578.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,112.16 : 45,168.27 = 9,052.20 : x
  2. Step 2: Convert to fraction form
    30,112.16/45,168.27 = 9,052.20/x
  3. Step 3: Cross multiply
    30,112.16x = 45,168.27 × 9,052.20
  4. Step 4: Simplify right side
    30,112.16x = 408,872,247.64
  5. Step 5: Solve for x
    x = 408,872,247.64/30,112.16
  6. Step 6: Final answer
    x = 13,578.31

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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.