Home / 31,357.19-47,035.58-7,664.90

Finding the Fourth Proportional to 31,357.19, 47,035.58 and 7,664.90

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Solution

The fourth proportional to 31,357.19, 47,035.58 and 7,664.90 is: 11,497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,357.19 : 47,035.58 = 7,664.90 : x
  2. Step 2: Convert to fraction form
    31,357.19/47,035.58 = 7,664.90/x
  3. Step 3: Cross multiply
    31,357.19x = 47,035.58 × 7,664.90
  4. Step 4: Simplify right side
    31,357.19x = 360,522,743.64
  5. Step 5: Solve for x
    x = 360,522,743.64/31,357.19
  6. Step 6: Final answer
    x = 11,497.29

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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.