Home / 34,380.09-51,570.18-9,420.35

Finding the Fourth Proportional to 34,380.09, 51,570.18 and 9,420.35

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Solution

The fourth proportional to 34,380.09, 51,570.18 and 9,420.35 is: 14,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,380.09 : 51,570.18 = 9,420.35 : x
  2. Step 2: Convert to fraction form
    34,380.09/51,570.18 = 9,420.35/x
  3. Step 3: Cross multiply
    34,380.09x = 51,570.18 × 9,420.35
  4. Step 4: Simplify right side
    34,380.09x = 485,809,145.16
  5. Step 5: Solve for x
    x = 485,809,145.16/34,380.09
  6. Step 6: Final answer
    x = 14,130.54

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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.