Home / 28,408.86-39,205.53-16,475.94

Finding the Fourth Proportional to 28,408.86, 39,205.53 and 16,475.94

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Solution

The fourth proportional to 28,408.86, 39,205.53 and 16,475.94 is: 22,737.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408.86 : 39,205.53 = 16,475.94 : x
  2. Step 2: Convert to fraction form
    28,408.86/39,205.53 = 16,475.94/x
  3. Step 3: Cross multiply
    28,408.86x = 39,205.53 × 16,475.94
  4. Step 4: Simplify right side
    28,408.86x = 645,947,959.95
  5. Step 5: Solve for x
    x = 645,947,959.95/28,408.86
  6. Step 6: Final answer
    x = 22,737.55

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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.