Home / 31,610.73-47,416.14-12,900.95

Finding the Fourth Proportional to 31,610.73, 47,416.14 and 12,900.95

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Solution

The fourth proportional to 31,610.73, 47,416.14 and 12,900.95 is: 19,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.73 : 47,416.14 = 12,900.95 : x
  2. Step 2: Convert to fraction form
    31,610.73/47,416.14 = 12,900.95/x
  3. Step 3: Cross multiply
    31,610.73x = 47,416.14 × 12,900.95
  4. Step 4: Simplify right side
    31,610.73x = 611,713,014.25
  5. Step 5: Solve for x
    x = 611,713,014.25/31,610.73
  6. Step 6: Final answer
    x = 19,351.44

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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.