Home / 31,668.12-47,407.50-19,150.29

Finding the Fourth Proportional to 31,668.12, 47,407.50 and 19,150.29

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Solution

The fourth proportional to 31,668.12, 47,407.50 and 19,150.29 is: 28,668.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,668.12 : 47,407.50 = 19,150.29 : x
  2. Step 2: Convert to fraction form
    31,668.12/47,407.50 = 19,150.29/x
  3. Step 3: Cross multiply
    31,668.12x = 47,407.50 × 19,150.29
  4. Step 4: Simplify right side
    31,668.12x = 907,867,373.18
  5. Step 5: Solve for x
    x = 907,867,373.18/31,668.12
  6. Step 6: Final answer
    x = 28,668.18

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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.