Home / 31,169.90-46,728.82-14,521.36

Finding the Fourth Proportional to 31,169.90, 46,728.82 and 14,521.36

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Solution

The fourth proportional to 31,169.90, 46,728.82 and 14,521.36 is: 21,769.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,169.90 : 46,728.82 = 14,521.36 : x
  2. Step 2: Convert to fraction form
    31,169.90/46,728.82 = 14,521.36/x
  3. Step 3: Cross multiply
    31,169.90x = 46,728.82 × 14,521.36
  4. Step 4: Simplify right side
    31,169.90x = 678,565,864.47
  5. Step 5: Solve for x
    x = 678,565,864.47/31,169.90
  6. Step 6: Final answer
    x = 21,769.91

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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.