Home / 28,421.66-42,653.38-22,940.66

Finding the Fourth Proportional to 28,421.66, 42,653.38 and 22,940.66

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Solution

The fourth proportional to 28,421.66, 42,653.38 and 22,940.66 is: 34,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,421.66 : 42,653.38 = 22,940.66 : x
  2. Step 2: Convert to fraction form
    28,421.66/42,653.38 = 22,940.66/x
  3. Step 3: Cross multiply
    28,421.66x = 42,653.38 × 22,940.66
  4. Step 4: Simplify right side
    28,421.66x = 978,496,688.43
  5. Step 5: Solve for x
    x = 978,496,688.43/28,421.66
  6. Step 6: Final answer
    x = 34,427.85

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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.