Home / 20,259.90-30,353.40-19,040.04

Finding the Fourth Proportional to 20,259.90, 30,353.40 and 19,040.04

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Solution

The fourth proportional to 20,259.90, 30,353.40 and 19,040.04 is: 28,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.90 : 30,353.40 = 19,040.04 : x
  2. Step 2: Convert to fraction form
    20,259.90/30,353.40 = 19,040.04/x
  3. Step 3: Cross multiply
    20,259.90x = 30,353.40 × 19,040.04
  4. Step 4: Simplify right side
    20,259.90x = 577,929,950.14
  5. Step 5: Solve for x
    x = 577,929,950.14/20,259.90
  6. Step 6: Final answer
    x = 28,525.80

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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.