Home / 19,966.08-29,938.32-11,218.08

Finding the Fourth Proportional to 19,966.08, 29,938.32 and 11,218.08

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Solution

The fourth proportional to 19,966.08, 29,938.32 and 11,218.08 is: 16,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.08 : 29,938.32 = 11,218.08 : x
  2. Step 2: Convert to fraction form
    19,966.08/29,938.32 = 11,218.08/x
  3. Step 3: Cross multiply
    19,966.08x = 29,938.32 × 11,218.08
  4. Step 4: Simplify right side
    19,966.08x = 335,850,468.83
  5. Step 5: Solve for x
    x = 335,850,468.83/19,966.08
  6. Step 6: Final answer
    x = 16,821.05

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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.