Home / 28,199.66-42,294.90-10,665.32

Finding the Fourth Proportional to 28,199.66, 42,294.90 and 10,665.32

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Solution

The fourth proportional to 28,199.66, 42,294.90 and 10,665.32 is: 15,996.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,199.66 : 42,294.90 = 10,665.32 : x
  2. Step 2: Convert to fraction form
    28,199.66/42,294.90 = 10,665.32/x
  3. Step 3: Cross multiply
    28,199.66x = 42,294.90 × 10,665.32
  4. Step 4: Simplify right side
    28,199.66x = 451,088,642.87
  5. Step 5: Solve for x
    x = 451,088,642.87/28,199.66
  6. Step 6: Final answer
    x = 15,996.24

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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.