Home / 19,731.05-27,223.33-13,360.81

Finding the Fourth Proportional to 19,731.05, 27,223.33 and 13,360.81

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Solution

The fourth proportional to 19,731.05, 27,223.33 and 13,360.81 is: 18,434.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.05 : 27,223.33 = 13,360.81 : x
  2. Step 2: Convert to fraction form
    19,731.05/27,223.33 = 13,360.81/x
  3. Step 3: Cross multiply
    19,731.05x = 27,223.33 × 13,360.81
  4. Step 4: Simplify right side
    19,731.05x = 363,725,603.58
  5. Step 5: Solve for x
    x = 363,725,603.58/19,731.05
  6. Step 6: Final answer
    x = 18,434.17

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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.