Home / 19,780.62-27,297.30-10,828.70

Finding the Fourth Proportional to 19,780.62, 27,297.30 and 10,828.70

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Solution

The fourth proportional to 19,780.62, 27,297.30 and 10,828.70 is: 14,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.62 : 27,297.30 = 10,828.70 : x
  2. Step 2: Convert to fraction form
    19,780.62/27,297.30 = 10,828.70/x
  3. Step 3: Cross multiply
    19,780.62x = 27,297.30 × 10,828.70
  4. Step 4: Simplify right side
    19,780.62x = 295,594,136.02
  5. Step 5: Solve for x
    x = 295,594,136.02/19,780.62
  6. Step 6: Final answer
    x = 14,943.62

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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.