Home / 31,515.06-47,273.51-8,141.50

Finding the Fourth Proportional to 31,515.06, 47,273.51 and 8,141.50

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Solution

The fourth proportional to 31,515.06, 47,273.51 and 8,141.50 is: 12,212.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.06 : 47,273.51 = 8,141.50 : x
  2. Step 2: Convert to fraction form
    31,515.06/47,273.51 = 8,141.50/x
  3. Step 3: Cross multiply
    31,515.06x = 47,273.51 × 8,141.50
  4. Step 4: Simplify right side
    31,515.06x = 384,877,281.67
  5. Step 5: Solve for x
    x = 384,877,281.67/31,515.06
  6. Step 6: Final answer
    x = 12,212.49

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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.