Home / 31,542.15-47,312.16-7,849.65

Finding the Fourth Proportional to 31,542.15, 47,312.16 and 7,849.65

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Solution

The fourth proportional to 31,542.15, 47,312.16 and 7,849.65 is: 11,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,542.15 : 47,312.16 = 7,849.65 : x
  2. Step 2: Convert to fraction form
    31,542.15/47,312.16 = 7,849.65/x
  3. Step 3: Cross multiply
    31,542.15x = 47,312.16 × 7,849.65
  4. Step 4: Simplify right side
    31,542.15x = 371,383,896.74
  5. Step 5: Solve for x
    x = 371,383,896.74/31,542.15
  6. Step 6: Final answer
    x = 11,774.21

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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.