Home / 30,168.16-45,267.32-13,540.08

Finding the Fourth Proportional to 30,168.16, 45,267.32 and 13,540.08

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Solution

The fourth proportional to 30,168.16, 45,267.32 and 13,540.08 is: 20,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.16 : 45,267.32 = 13,540.08 : x
  2. Step 2: Convert to fraction form
    30,168.16/45,267.32 = 13,540.08/x
  3. Step 3: Cross multiply
    30,168.16x = 45,267.32 × 13,540.08
  4. Step 4: Simplify right side
    30,168.16x = 612,923,134.19
  5. Step 5: Solve for x
    x = 612,923,134.19/30,168.16
  6. Step 6: Final answer
    x = 20,316.89

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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.