Home / 25,641.72-38,448.82-13,156.64

Finding the Fourth Proportional to 25,641.72, 38,448.82 and 13,156.64

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Solution

The fourth proportional to 25,641.72, 38,448.82 and 13,156.64 is: 19,727.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.72 : 38,448.82 = 13,156.64 : x
  2. Step 2: Convert to fraction form
    25,641.72/38,448.82 = 13,156.64/x
  3. Step 3: Cross multiply
    25,641.72x = 38,448.82 × 13,156.64
  4. Step 4: Simplify right side
    25,641.72x = 505,857,283.16
  5. Step 5: Solve for x
    x = 505,857,283.16/25,641.72
  6. Step 6: Final answer
    x = 19,727.90

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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.