Home / 21,580.58-29,777.49-19,836.58

Finding the Fourth Proportional to 21,580.58, 29,777.49 and 19,836.58

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Solution

The fourth proportional to 21,580.58, 29,777.49 and 19,836.58 is: 27,371.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,580.58 : 29,777.49 = 19,836.58 : x
  2. Step 2: Convert to fraction form
    21,580.58/29,777.49 = 19,836.58/x
  3. Step 3: Cross multiply
    21,580.58x = 29,777.49 × 19,836.58
  4. Step 4: Simplify right side
    21,580.58x = 590,683,562.58
  5. Step 5: Solve for x
    x = 590,683,562.58/21,580.58
  6. Step 6: Final answer
    x = 27,371.07

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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.