Home / 30,290.78-45,420.91-17,644.61

Finding the Fourth Proportional to 30,290.78, 45,420.91 and 17,644.61

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Solution

The fourth proportional to 30,290.78, 45,420.91 and 17,644.61 is: 26,458.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.78 : 45,420.91 = 17,644.61 : x
  2. Step 2: Convert to fraction form
    30,290.78/45,420.91 = 17,644.61/x
  3. Step 3: Cross multiply
    30,290.78x = 45,420.91 × 17,644.61
  4. Step 4: Simplify right side
    30,290.78x = 801,434,242.80
  5. Step 5: Solve for x
    x = 801,434,242.80/30,290.78
  6. Step 6: Final answer
    x = 26,458.03

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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.