Home / 19,728.51-29,592.30-9,187.17

Finding the Fourth Proportional to 19,728.51, 29,592.30 and 9,187.17

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Solution

The fourth proportional to 19,728.51, 29,592.30 and 9,187.17 is: 13,780.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,728.51 : 29,592.30 = 9,187.17 : x
  2. Step 2: Convert to fraction form
    19,728.51/29,592.30 = 9,187.17/x
  3. Step 3: Cross multiply
    19,728.51x = 29,592.30 × 9,187.17
  4. Step 4: Simplify right side
    19,728.51x = 271,869,490.79
  5. Step 5: Solve for x
    x = 271,869,490.79/19,728.51
  6. Step 6: Final answer
    x = 13,780.54

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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.