Home / 31,623.66-47,430.69-11,897.61

Finding the Fourth Proportional to 31,623.66, 47,430.69 and 11,897.61

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Solution

The fourth proportional to 31,623.66, 47,430.69 and 11,897.61 is: 17,844.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,623.66 : 47,430.69 = 11,897.61 : x
  2. Step 2: Convert to fraction form
    31,623.66/47,430.69 = 11,897.61/x
  3. Step 3: Cross multiply
    31,623.66x = 47,430.69 × 11,897.61
  4. Step 4: Simplify right side
    31,623.66x = 564,311,851.65
  5. Step 5: Solve for x
    x = 564,311,851.65/31,623.66
  6. Step 6: Final answer
    x = 17,844.61

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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.