Home / 28,218.08-42,327.47-19,450.64

Finding the Fourth Proportional to 28,218.08, 42,327.47 and 19,450.64

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Solution

The fourth proportional to 28,218.08, 42,327.47 and 19,450.64 is: 29,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.08 : 42,327.47 = 19,450.64 : x
  2. Step 2: Convert to fraction form
    28,218.08/42,327.47 = 19,450.64/x
  3. Step 3: Cross multiply
    28,218.08x = 42,327.47 × 19,450.64
  4. Step 4: Simplify right side
    28,218.08x = 823,296,381.08
  5. Step 5: Solve for x
    x = 823,296,381.08/28,218.08
  6. Step 6: Final answer
    x = 29,176.20

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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.