Home / 10,421.24-15,631.94-3,026.20

Finding the Fourth Proportional to 10,421.24, 15,631.94 and 3,026.20

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Solution

The fourth proportional to 10,421.24, 15,631.94 and 3,026.20 is: 4,539.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.24 : 15,631.94 = 3,026.20 : x
  2. Step 2: Convert to fraction form
    10,421.24/15,631.94 = 3,026.20/x
  3. Step 3: Cross multiply
    10,421.24x = 15,631.94 × 3,026.20
  4. Step 4: Simplify right side
    10,421.24x = 47,305,376.83
  5. Step 5: Solve for x
    x = 47,305,376.83/10,421.24
  6. Step 6: Final answer
    x = 4,539.32

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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.