Home / 28,727-39,637.40-16,788.04

Finding the Fourth Proportional to 28,727, 39,637.40 and 16,788.04

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Solution

The fourth proportional to 28,727, 39,637.40 and 16,788.04 is: 23,164.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727 : 39,637.40 = 16,788.04 : x
  2. Step 2: Convert to fraction form
    28,727/39,637.40 = 16,788.04/x
  3. Step 3: Cross multiply
    28,727x = 39,637.40 × 16,788.04
  4. Step 4: Simplify right side
    28,727x = 665,434,256.70
  5. Step 5: Solve for x
    x = 665,434,256.70/28,727
  6. Step 6: Final answer
    x = 23,164.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.