Home / 28,219.08-42,328.98-19,451.64

Finding the Fourth Proportional to 28,219.08, 42,328.98 and 19,451.64

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Solution

The fourth proportional to 28,219.08, 42,328.98 and 19,451.64 is: 29,177.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.08 : 42,328.98 = 19,451.64 : x
  2. Step 2: Convert to fraction form
    28,219.08/42,328.98 = 19,451.64/x
  3. Step 3: Cross multiply
    28,219.08x = 42,328.98 × 19,451.64
  4. Step 4: Simplify right side
    28,219.08x = 823,368,080.53
  5. Step 5: Solve for x
    x = 823,368,080.53/28,219.08
  6. Step 6: Final answer
    x = 29,177.71

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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.