Home / 19,261.08-28,892.70-5,409

Finding the Fourth Proportional to 19,261.08, 28,892.70 and 5,409

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Solution

The fourth proportional to 19,261.08, 28,892.70 and 5,409 is: 8,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.08 : 28,892.70 = 5,409 : x
  2. Step 2: Convert to fraction form
    19,261.08/28,892.70 = 5,409/x
  3. Step 3: Cross multiply
    19,261.08x = 28,892.70 × 5,409
  4. Step 4: Simplify right side
    19,261.08x = 156,280,614.30
  5. Step 5: Solve for x
    x = 156,280,614.30/19,261.08
  6. Step 6: Final answer
    x = 8,113.80

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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.