Home / 28,295.72-42,438.87-8,569.59

Finding the Fourth Proportional to 28,295.72, 42,438.87 and 8,569.59

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Solution

The fourth proportional to 28,295.72, 42,438.87 and 8,569.59 is: 12,852.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.72 : 42,438.87 = 8,569.59 : x
  2. Step 2: Convert to fraction form
    28,295.72/42,438.87 = 8,569.59/x
  3. Step 3: Cross multiply
    28,295.72x = 42,438.87 × 8,569.59
  4. Step 4: Simplify right side
    28,295.72x = 363,683,524.68
  5. Step 5: Solve for x
    x = 363,683,524.68/28,295.72
  6. Step 6: Final answer
    x = 12,852.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.