Home / 34,380.13-51,570.24-9,420.40

Finding the Fourth Proportional to 34,380.13, 51,570.24 and 9,420.40

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Solution

The fourth proportional to 34,380.13, 51,570.24 and 9,420.40 is: 14,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,380.13 : 51,570.24 = 9,420.40 : x
  2. Step 2: Convert to fraction form
    34,380.13/51,570.24 = 9,420.40/x
  3. Step 3: Cross multiply
    34,380.13x = 51,570.24 × 9,420.40
  4. Step 4: Simplify right side
    34,380.13x = 485,812,288.90
  5. Step 5: Solve for x
    x = 485,812,288.90/34,380.13
  6. Step 6: Final answer
    x = 14,130.61

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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.