Home / 31,491.08-47,237.07-8,117.52

Finding the Fourth Proportional to 31,491.08, 47,237.07 and 8,117.52

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Solution

The fourth proportional to 31,491.08, 47,237.07 and 8,117.52 is: 12,176.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,491.08 : 47,237.07 = 8,117.52 : x
  2. Step 2: Convert to fraction form
    31,491.08/47,237.07 = 8,117.52/x
  3. Step 3: Cross multiply
    31,491.08x = 47,237.07 × 8,117.52
  4. Step 4: Simplify right side
    31,491.08x = 383,447,713.77
  5. Step 5: Solve for x
    x = 383,447,713.77/31,491.08
  6. Step 6: Final answer
    x = 12,176.39

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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.