Home / 28,703.13-39,615.08-16,766.43

Finding the Fourth Proportional to 28,703.13, 39,615.08 and 16,766.43

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Solution

The fourth proportional to 28,703.13, 39,615.08 and 16,766.43 is: 23,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,703.13 : 39,615.08 = 16,766.43 : x
  2. Step 2: Convert to fraction form
    28,703.13/39,615.08 = 16,766.43/x
  3. Step 3: Cross multiply
    28,703.13x = 39,615.08 × 16,766.43
  4. Step 4: Simplify right side
    28,703.13x = 664,203,381.93
  5. Step 5: Solve for x
    x = 664,203,381.93/28,703.13
  6. Step 6: Final answer
    x = 23,140.45

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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.