Home / 10,430.31-15,647.78-3,035.35

Finding the Fourth Proportional to 10,430.31, 15,647.78 and 3,035.35

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Solution

The fourth proportional to 10,430.31, 15,647.78 and 3,035.35 is: 4,553.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,430.31 : 15,647.78 = 3,035.35 : x
  2. Step 2: Convert to fraction form
    10,430.31/15,647.78 = 3,035.35/x
  3. Step 3: Cross multiply
    10,430.31x = 15,647.78 × 3,035.35
  4. Step 4: Simplify right side
    10,430.31x = 47,496,489.02
  5. Step 5: Solve for x
    x = 47,496,489.02/10,430.31
  6. Step 6: Final answer
    x = 4,553.70

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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.