Home / 21,419.40-32,096.70-18,114.60

Finding the Fourth Proportional to 21,419.40, 32,096.70 and 18,114.60

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Solution

The fourth proportional to 21,419.40, 32,096.70 and 18,114.60 is: 27,144.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419.40 : 32,096.70 = 18,114.60 : x
  2. Step 2: Convert to fraction form
    21,419.40/32,096.70 = 18,114.60/x
  3. Step 3: Cross multiply
    21,419.40x = 32,096.70 × 18,114.60
  4. Step 4: Simplify right side
    21,419.40x = 581,418,881.82
  5. Step 5: Solve for x
    x = 581,418,881.82/21,419.40
  6. Step 6: Final answer
    x = 27,144.50

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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.