Home / 29,218.58-40,354.90-19,641.84

Finding the Fourth Proportional to 29,218.58, 40,354.90 and 19,641.84

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Solution

The fourth proportional to 29,218.58, 40,354.90 and 19,641.84 is: 27,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,218.58 : 40,354.90 = 19,641.84 : x
  2. Step 2: Convert to fraction form
    29,218.58/40,354.90 = 19,641.84/x
  3. Step 3: Cross multiply
    29,218.58x = 40,354.90 × 19,641.84
  4. Step 4: Simplify right side
    29,218.58x = 792,644,489.02
  5. Step 5: Solve for x
    x = 792,644,489.02/29,218.58
  6. Step 6: Final answer
    x = 27,128.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.