Home / 10,420.24-15,630.44-3,025.20

Finding the Fourth Proportional to 10,420.24, 15,630.44 and 3,025.20

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Solution

The fourth proportional to 10,420.24, 15,630.44 and 3,025.20 is: 4,537.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.24 : 15,630.44 = 3,025.20 : x
  2. Step 2: Convert to fraction form
    10,420.24/15,630.44 = 3,025.20/x
  3. Step 3: Cross multiply
    10,420.24x = 15,630.44 × 3,025.20
  4. Step 4: Simplify right side
    10,420.24x = 47,285,207.09
  5. Step 5: Solve for x
    x = 47,285,207.09/10,420.24
  6. Step 6: Final answer
    x = 4,537.82

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1.5x scale

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.