Home / 31,778.15-47,679.77-12,061.94

Finding the Fourth Proportional to 31,778.15, 47,679.77 and 12,061.94

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Solution

The fourth proportional to 31,778.15, 47,679.77 and 12,061.94 is: 18,097.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.15 : 47,679.77 = 12,061.94 : x
  2. Step 2: Convert to fraction form
    31,778.15/47,679.77 = 12,061.94/x
  3. Step 3: Cross multiply
    31,778.15x = 47,679.77 × 12,061.94
  4. Step 4: Simplify right side
    31,778.15x = 575,110,316.71
  5. Step 5: Solve for x
    x = 575,110,316.71/31,778.15
  6. Step 6: Final answer
    x = 18,097.67

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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.