Home / 28,232.14-42,355.32-19,928.38

Finding the Fourth Proportional to 28,232.14, 42,355.32 and 19,928.38

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Solution

The fourth proportional to 28,232.14, 42,355.32 and 19,928.38 is: 29,897.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.14 : 42,355.32 = 19,928.38 : x
  2. Step 2: Convert to fraction form
    28,232.14/42,355.32 = 19,928.38/x
  3. Step 3: Cross multiply
    28,232.14x = 42,355.32 × 19,928.38
  4. Step 4: Simplify right side
    28,232.14x = 844,072,700.21
  5. Step 5: Solve for x
    x = 844,072,700.21/28,232.14
  6. Step 6: Final answer
    x = 29,897.59

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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.