Home / 31,480.73-47,191.41-15,670.82

Finding the Fourth Proportional to 31,480.73, 47,191.41 and 15,670.82

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Solution

The fourth proportional to 31,480.73, 47,191.41 and 15,670.82 is: 23,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,480.73 : 47,191.41 = 15,670.82 : x
  2. Step 2: Convert to fraction form
    31,480.73/47,191.41 = 15,670.82/x
  3. Step 3: Cross multiply
    31,480.73x = 47,191.41 × 15,670.82
  4. Step 4: Simplify right side
    31,480.73x = 739,528,091.66
  5. Step 5: Solve for x
    x = 739,528,091.66/31,480.73
  6. Step 6: Final answer
    x = 23,491.45

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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.