Home / 34,786.53-48,005.40-19,678.86

Finding the Fourth Proportional to 34,786.53, 48,005.40 and 19,678.86

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Solution

The fourth proportional to 34,786.53, 48,005.40 and 19,678.86 is: 27,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,786.53 : 48,005.40 = 19,678.86 : x
  2. Step 2: Convert to fraction form
    34,786.53/48,005.40 = 19,678.86/x
  3. Step 3: Cross multiply
    34,786.53x = 48,005.40 × 19,678.86
  4. Step 4: Simplify right side
    34,786.53x = 944,691,545.84
  5. Step 5: Solve for x
    x = 944,691,545.84/34,786.53
  6. Step 6: Final answer
    x = 27,156.82

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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.