Home / 19,810.31-27,337.57-10,857.71

Finding the Fourth Proportional to 19,810.31, 27,337.57 and 10,857.71

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Solution

The fourth proportional to 19,810.31, 27,337.57 and 10,857.71 is: 14,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,810.31 : 27,337.57 = 10,857.71 : x
  2. Step 2: Convert to fraction form
    19,810.31/27,337.57 = 10,857.71/x
  3. Step 3: Cross multiply
    19,810.31x = 27,337.57 × 10,857.71
  4. Step 4: Simplify right side
    19,810.31x = 296,823,448.36
  5. Step 5: Solve for x
    x = 296,823,448.36/19,810.31
  6. Step 6: Final answer
    x = 14,983.29

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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.