Home / 34,380.05-51,570.11-9,420.30

Finding the Fourth Proportional to 34,380.05, 51,570.11 and 9,420.30

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Solution

The fourth proportional to 34,380.05, 51,570.11 and 9,420.30 is: 14,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,380.05 : 51,570.11 = 9,420.30 : x
  2. Step 2: Convert to fraction form
    34,380.05/51,570.11 = 9,420.30/x
  3. Step 3: Cross multiply
    34,380.05x = 51,570.11 × 9,420.30
  4. Step 4: Simplify right side
    34,380.05x = 485,805,860.13
  5. Step 5: Solve for x
    x = 485,805,860.13/34,380.05
  6. Step 6: Final answer
    x = 14,130.46

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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.