Home / 31,430.75-47,136.08-10,366.85

Finding the Fourth Proportional to 31,430.75, 47,136.08 and 10,366.85

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Solution

The fourth proportional to 31,430.75, 47,136.08 and 10,366.85 is: 15,546.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.75 : 47,136.08 = 10,366.85 : x
  2. Step 2: Convert to fraction form
    31,430.75/47,136.08 = 10,366.85/x
  3. Step 3: Cross multiply
    31,430.75x = 47,136.08 × 10,366.85
  4. Step 4: Simplify right side
    31,430.75x = 488,652,619.11
  5. Step 5: Solve for x
    x = 488,652,619.11/31,430.75
  6. Step 6: Final answer
    x = 15,546.96

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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.