Home / 31,719.07-47,563.70-18,395.85

Finding the Fourth Proportional to 31,719.07, 47,563.70 and 18,395.85

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Solution

The fourth proportional to 31,719.07, 47,563.70 and 18,395.85 is: 27,585.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.07 : 47,563.70 = 18,395.85 : x
  2. Step 2: Convert to fraction form
    31,719.07/47,563.70 = 18,395.85/x
  3. Step 3: Cross multiply
    31,719.07x = 47,563.70 × 18,395.85
  4. Step 4: Simplify right side
    31,719.07x = 874,974,736.63
  5. Step 5: Solve for x
    x = 874,974,736.63/31,719.07
  6. Step 6: Final answer
    x = 27,585.13

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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.