Home / 15,625.23-23,439.68-5,490.50

Finding the Fourth Proportional to 15,625.23, 23,439.68 and 5,490.50

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Solution

The fourth proportional to 15,625.23, 23,439.68 and 5,490.50 is: 8,236.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.23 : 23,439.68 = 5,490.50 : x
  2. Step 2: Convert to fraction form
    15,625.23/23,439.68 = 5,490.50/x
  3. Step 3: Cross multiply
    15,625.23x = 23,439.68 × 5,490.50
  4. Step 4: Simplify right side
    15,625.23x = 128,695,563.04
  5. Step 5: Solve for x
    x = 128,695,563.04/15,625.23
  6. Step 6: Final answer
    x = 8,236.39

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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.