Home / 19,265.40-28,902.15-10,938.60

Finding the Fourth Proportional to 19,265.40, 28,902.15 and 10,938.60

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Solution

The fourth proportional to 19,265.40, 28,902.15 and 10,938.60 is: 16,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,265.40 : 28,902.15 = 10,938.60 : x
  2. Step 2: Convert to fraction form
    19,265.40/28,902.15 = 10,938.60/x
  3. Step 3: Cross multiply
    19,265.40x = 28,902.15 × 10,938.60
  4. Step 4: Simplify right side
    19,265.40x = 316,149,057.99
  5. Step 5: Solve for x
    x = 316,149,057.99/19,265.40
  6. Step 6: Final answer
    x = 16,410.20

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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.