Home / 21,423.45-32,147.33-8,276.75

Finding the Fourth Proportional to 21,423.45, 32,147.33 and 8,276.75

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Solution

The fourth proportional to 21,423.45, 32,147.33 and 8,276.75 is: 12,419.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,423.45 : 32,147.33 = 8,276.75 : x
  2. Step 2: Convert to fraction form
    21,423.45/32,147.33 = 8,276.75/x
  3. Step 3: Cross multiply
    21,423.45x = 32,147.33 × 8,276.75
  4. Step 4: Simplify right side
    21,423.45x = 266,075,413.58
  5. Step 5: Solve for x
    x = 266,075,413.58/21,423.45
  6. Step 6: Final answer
    x = 12,419.82

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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.