Home / 20,655.06-30,982.59-19,603.26

Finding the Fourth Proportional to 20,655.06, 30,982.59 and 19,603.26

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Solution

The fourth proportional to 20,655.06, 30,982.59 and 19,603.26 is: 29,404.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.06 : 30,982.59 = 19,603.26 : x
  2. Step 2: Convert to fraction form
    20,655.06/30,982.59 = 19,603.26/x
  3. Step 3: Cross multiply
    20,655.06x = 30,982.59 × 19,603.26
  4. Step 4: Simplify right side
    20,655.06x = 607,359,767.24
  5. Step 5: Solve for x
    x = 607,359,767.24/20,655.06
  6. Step 6: Final answer
    x = 29,404.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.