Home / 28,747.60-39,671.26-16,172.35

Finding the Fourth Proportional to 28,747.60, 39,671.26 and 16,172.35

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Solution

The fourth proportional to 28,747.60, 39,671.26 and 16,172.35 is: 22,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,747.60 : 39,671.26 = 16,172.35 : x
  2. Step 2: Convert to fraction form
    28,747.60/39,671.26 = 16,172.35/x
  3. Step 3: Cross multiply
    28,747.60x = 39,671.26 × 16,172.35
  4. Step 4: Simplify right side
    28,747.60x = 641,577,501.66
  5. Step 5: Solve for x
    x = 641,577,501.66/28,747.60
  6. Step 6: Final answer
    x = 22,317.60

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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.