Home / 31,515.06-47,280.79-11,795.14

Finding the Fourth Proportional to 31,515.06, 47,280.79 and 11,795.14

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Solution

The fourth proportional to 31,515.06, 47,280.79 and 11,795.14 is: 17,695.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.06 : 47,280.79 = 11,795.14 : x
  2. Step 2: Convert to fraction form
    31,515.06/47,280.79 = 11,795.14/x
  3. Step 3: Cross multiply
    31,515.06x = 47,280.79 × 11,795.14
  4. Step 4: Simplify right side
    31,515.06x = 557,683,537.36
  5. Step 5: Solve for x
    x = 557,683,537.36/31,515.06
  6. Step 6: Final answer
    x = 17,695.78

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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.