Home / 19,568.40-29,357.04-6,420.48

Finding the Fourth Proportional to 19,568.40, 29,357.04 and 6,420.48

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Solution

The fourth proportional to 19,568.40, 29,357.04 and 6,420.48 is: 9,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,568.40 : 29,357.04 = 6,420.48 : x
  2. Step 2: Convert to fraction form
    19,568.40/29,357.04 = 6,420.48/x
  3. Step 3: Cross multiply
    19,568.40x = 29,357.04 × 6,420.48
  4. Step 4: Simplify right side
    19,568.40x = 188,486,288.18
  5. Step 5: Solve for x
    x = 188,486,288.18/19,568.40
  6. Step 6: Final answer
    x = 9,632.18

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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.