Home / 22,188.96-30,387.60-21,897.36

Finding the Fourth Proportional to 22,188.96, 30,387.60 and 21,897.36

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Solution

The fourth proportional to 22,188.96, 30,387.60 and 21,897.36 is: 29,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,188.96 : 30,387.60 = 21,897.36 : x
  2. Step 2: Convert to fraction form
    22,188.96/30,387.60 = 21,897.36/x
  3. Step 3: Cross multiply
    22,188.96x = 30,387.60 × 21,897.36
  4. Step 4: Simplify right side
    22,188.96x = 665,408,216.74
  5. Step 5: Solve for x
    x = 665,408,216.74/22,188.96
  6. Step 6: Final answer
    x = 29,988.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.