Home / 20,608.61-28,408.88-16,124.58

Finding the Fourth Proportional to 20,608.61, 28,408.88 and 16,124.58

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Solution

The fourth proportional to 20,608.61, 28,408.88 and 16,124.58 is: 22,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.61 : 28,408.88 = 16,124.58 : x
  2. Step 2: Convert to fraction form
    20,608.61/28,408.88 = 16,124.58/x
  3. Step 3: Cross multiply
    20,608.61x = 28,408.88 × 16,124.58
  4. Step 4: Simplify right side
    20,608.61x = 458,081,298.58
  5. Step 5: Solve for x
    x = 458,081,298.58/20,608.61
  6. Step 6: Final answer
    x = 22,227.66

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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.