Home / 28,435.74-42,658.62-9,711.39

Finding the Fourth Proportional to 28,435.74, 42,658.62 and 9,711.39

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Solution

The fourth proportional to 28,435.74, 42,658.62 and 9,711.39 is: 14,568.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.74 : 42,658.62 = 9,711.39 : x
  2. Step 2: Convert to fraction form
    28,435.74/42,658.62 = 9,711.39/x
  3. Step 3: Cross multiply
    28,435.74x = 42,658.62 × 9,711.39
  4. Step 4: Simplify right side
    28,435.74x = 414,274,431.22
  5. Step 5: Solve for x
    x = 414,274,431.22/28,435.74
  6. Step 6: Final answer
    x = 14,568.79

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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.