Home / 19,809.91-27,337.89-10,857.22

Finding the Fourth Proportional to 19,809.91, 27,337.89 and 10,857.22

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Solution

The fourth proportional to 19,809.91, 27,337.89 and 10,857.22 is: 14,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.91 : 27,337.89 = 10,857.22 : x
  2. Step 2: Convert to fraction form
    19,809.91/27,337.89 = 10,857.22/x
  3. Step 3: Cross multiply
    19,809.91x = 27,337.89 × 10,857.22
  4. Step 4: Simplify right side
    19,809.91x = 296,813,377.01
  5. Step 5: Solve for x
    x = 296,813,377.01/19,809.91
  6. Step 6: Final answer
    x = 14,983.08

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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.