Home / 28,704.51-39,615.89-16,129.26

Finding the Fourth Proportional to 28,704.51, 39,615.89 and 16,129.26

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Solution

The fourth proportional to 28,704.51, 39,615.89 and 16,129.26 is: 22,260.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.51 : 39,615.89 = 16,129.26 : x
  2. Step 2: Convert to fraction form
    28,704.51/39,615.89 = 16,129.26/x
  3. Step 3: Cross multiply
    28,704.51x = 39,615.89 × 16,129.26
  4. Step 4: Simplify right side
    28,704.51x = 638,974,909.30
  5. Step 5: Solve for x
    x = 638,974,909.30/28,704.51
  6. Step 6: Final answer
    x = 22,260.44

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1.5x scale

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.