Home / 28,289.07-42,438.15-8,565.98

Finding the Fourth Proportional to 28,289.07, 42,438.15 and 8,565.98

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Solution

The fourth proportional to 28,289.07, 42,438.15 and 8,565.98 is: 12,850.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.07 : 42,438.15 = 8,565.98 : x
  2. Step 2: Convert to fraction form
    28,289.07/42,438.15 = 8,565.98/x
  3. Step 3: Cross multiply
    28,289.07x = 42,438.15 × 8,565.98
  4. Step 4: Simplify right side
    28,289.07x = 363,524,131.95
  5. Step 5: Solve for x
    x = 363,524,131.95/28,289.07
  6. Step 6: Final answer
    x = 12,850.34

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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.