Home / 30,261.78-45,353.23-15,458.22

Finding the Fourth Proportional to 30,261.78, 45,353.23 and 15,458.22

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Solution

The fourth proportional to 30,261.78, 45,353.23 and 15,458.22 is: 23,167.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,261.78 : 45,353.23 = 15,458.22 : x
  2. Step 2: Convert to fraction form
    30,261.78/45,353.23 = 15,458.22/x
  3. Step 3: Cross multiply
    30,261.78x = 45,353.23 × 15,458.22
  4. Step 4: Simplify right side
    30,261.78x = 701,080,207.05
  5. Step 5: Solve for x
    x = 701,080,207.05/30,261.78
  6. Step 6: Final answer
    x = 23,167.18

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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.