Home / 31,739.95-47,610.00-8,047.49

Finding the Fourth Proportional to 31,739.95, 47,610.00 and 8,047.49

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Solution

The fourth proportional to 31,739.95, 47,610.00 and 8,047.49 is: 12,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.95 : 47,610.00 = 8,047.49 : x
  2. Step 2: Convert to fraction form
    31,739.95/47,610.00 = 8,047.49/x
  3. Step 3: Cross multiply
    31,739.95x = 47,610.00 × 8,047.49
  4. Step 4: Simplify right side
    31,739.95x = 383,140,958.66
  5. Step 5: Solve for x
    x = 383,140,958.66/31,739.95
  6. Step 6: Final answer
    x = 12,071.25

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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.