Home / 21,685.96-32,371.97-19,061.56

Finding the Fourth Proportional to 21,685.96, 32,371.97 and 19,061.56

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Solution

The fourth proportional to 21,685.96, 32,371.97 and 19,061.56 is: 28,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,685.96 : 32,371.97 = 19,061.56 : x
  2. Step 2: Convert to fraction form
    21,685.96/32,371.97 = 19,061.56/x
  3. Step 3: Cross multiply
    21,685.96x = 32,371.97 × 19,061.56
  4. Step 4: Simplify right side
    21,685.96x = 617,060,248.47
  5. Step 5: Solve for x
    x = 617,060,248.47/21,685.96
  6. Step 6: Final answer
    x = 28,454.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.