Home / 30,395.13-41,964.54-20,851.02

Finding the Fourth Proportional to 30,395.13, 41,964.54 and 20,851.02

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Solution

The fourth proportional to 30,395.13, 41,964.54 and 20,851.02 is: 28,787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.13 : 41,964.54 = 20,851.02 : x
  2. Step 2: Convert to fraction form
    30,395.13/41,964.54 = 20,851.02/x
  3. Step 3: Cross multiply
    30,395.13x = 41,964.54 × 20,851.02
  4. Step 4: Simplify right side
    30,395.13x = 875,003,462.83
  5. Step 5: Solve for x
    x = 875,003,462.83/30,395.13
  6. Step 6: Final answer
    x = 28,787.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.