Home / 31,352.86-47,028.68-7,660.56

Finding the Fourth Proportional to 31,352.86, 47,028.68 and 7,660.56

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Solution

The fourth proportional to 31,352.86, 47,028.68 and 7,660.56 is: 11,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,352.86 : 47,028.68 = 7,660.56 : x
  2. Step 2: Convert to fraction form
    31,352.86/47,028.68 = 7,660.56/x
  3. Step 3: Cross multiply
    31,352.86x = 47,028.68 × 7,660.56
  4. Step 4: Simplify right side
    31,352.86x = 360,266,024.86
  5. Step 5: Solve for x
    x = 360,266,024.86/31,352.86
  6. Step 6: Final answer
    x = 11,490.69

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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.