Home / 21,195.18-29,242.59-12,241.50

Finding the Fourth Proportional to 21,195.18, 29,242.59 and 12,241.50

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Solution

The fourth proportional to 21,195.18, 29,242.59 and 12,241.50 is: 16,889.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.18 : 29,242.59 = 12,241.50 : x
  2. Step 2: Convert to fraction form
    21,195.18/29,242.59 = 12,241.50/x
  3. Step 3: Cross multiply
    21,195.18x = 29,242.59 × 12,241.50
  4. Step 4: Simplify right side
    21,195.18x = 357,973,165.49
  5. Step 5: Solve for x
    x = 357,973,165.49/21,195.18
  6. Step 6: Final answer
    x = 16,889.37

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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.