Home / 31,619.55-47,428.19-7,927.29

Finding the Fourth Proportional to 31,619.55, 47,428.19 and 7,927.29

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Solution

The fourth proportional to 31,619.55, 47,428.19 and 7,927.29 is: 11,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,619.55 : 47,428.19 = 7,927.29 : x
  2. Step 2: Convert to fraction form
    31,619.55/47,428.19 = 7,927.29/x
  3. Step 3: Cross multiply
    31,619.55x = 47,428.19 × 7,927.29
  4. Step 4: Simplify right side
    31,619.55x = 375,977,016.31
  5. Step 5: Solve for x
    x = 375,977,016.31/31,619.55
  6. Step 6: Final answer
    x = 11,890.65

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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.