Home / 19,421.60-29,154.24-7,743

Finding the Fourth Proportional to 19,421.60, 29,154.24 and 7,743

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Solution

The fourth proportional to 19,421.60, 29,154.24 and 7,743 is: 11,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.60 : 29,154.24 = 7,743 : x
  2. Step 2: Convert to fraction form
    19,421.60/29,154.24 = 7,743/x
  3. Step 3: Cross multiply
    19,421.60x = 29,154.24 × 7,743
  4. Step 4: Simplify right side
    19,421.60x = 225,741,280.32
  5. Step 5: Solve for x
    x = 225,741,280.32/19,421.60
  6. Step 6: Final answer
    x = 11,623.21

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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.