Home / 31,706.99-47,581.23-11,985.56

Finding the Fourth Proportional to 31,706.99, 47,581.23 and 11,985.56

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Solution

The fourth proportional to 31,706.99, 47,581.23 and 11,985.56 is: 17,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,706.99 : 47,581.23 = 11,985.56 : x
  2. Step 2: Convert to fraction form
    31,706.99/47,581.23 = 11,985.56/x
  3. Step 3: Cross multiply
    31,706.99x = 47,581.23 × 11,985.56
  4. Step 4: Simplify right side
    31,706.99x = 570,287,449.13
  5. Step 5: Solve for x
    x = 570,287,449.13/31,706.99
  6. Step 6: Final answer
    x = 17,986.18

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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.