Home / 31,621.94-47,428.12-11,895.91

Finding the Fourth Proportional to 31,621.94, 47,428.12 and 11,895.91

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Solution

The fourth proportional to 31,621.94, 47,428.12 and 11,895.91 is: 17,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.94 : 47,428.12 = 11,895.91 : x
  2. Step 2: Convert to fraction form
    31,621.94/47,428.12 = 11,895.91/x
  3. Step 3: Cross multiply
    31,621.94x = 47,428.12 × 11,895.91
  4. Step 4: Simplify right side
    31,621.94x = 564,200,646.99
  5. Step 5: Solve for x
    x = 564,200,646.99/31,621.94
  6. Step 6: Final answer
    x = 17,842.06

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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.