Home / 19,836.86-29,728.26-9,982.91

Finding the Fourth Proportional to 19,836.86, 29,728.26 and 9,982.91

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Solution

The fourth proportional to 19,836.86, 29,728.26 and 9,982.91 is: 14,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,836.86 : 29,728.26 = 9,982.91 : x
  2. Step 2: Convert to fraction form
    19,836.86/29,728.26 = 9,982.91/x
  3. Step 3: Cross multiply
    19,836.86x = 29,728.26 × 9,982.91
  4. Step 4: Simplify right side
    19,836.86x = 296,774,618.36
  5. Step 5: Solve for x
    x = 296,774,618.36/19,836.86
  6. Step 6: Final answer
    x = 14,960.76

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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.