Home / 20,717.84-31,232.94-19,381.52

Finding the Fourth Proportional to 20,717.84, 31,232.94 and 19,381.52

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Solution

The fourth proportional to 20,717.84, 31,232.94 and 19,381.52 is: 29,218.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.84 : 31,232.94 = 19,381.52 : x
  2. Step 2: Convert to fraction form
    20,717.84/31,232.94 = 19,381.52/x
  3. Step 3: Cross multiply
    20,717.84x = 31,232.94 × 19,381.52
  4. Step 4: Simplify right side
    20,717.84x = 605,341,851.27
  5. Step 5: Solve for x
    x = 605,341,851.27/20,717.84
  6. Step 6: Final answer
    x = 29,218.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.