Home / 40,287.60-60,359.40-19,465.20

Finding the Fourth Proportional to 40,287.60, 60,359.40 and 19,465.20

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Solution

The fourth proportional to 40,287.60, 60,359.40 and 19,465.20 is: 29,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,287.60 : 60,359.40 = 19,465.20 : x
  2. Step 2: Convert to fraction form
    40,287.60/60,359.40 = 19,465.20/x
  3. Step 3: Cross multiply
    40,287.60x = 60,359.40 × 19,465.20
  4. Step 4: Simplify right side
    40,287.60x = 1,174,907,792.88
  5. Step 5: Solve for x
    x = 1,174,907,792.88/40,287.60
  6. Step 6: Final answer
    x = 29,163.01

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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.