Home / 21,527.60-32,291.40-19,972.40

Finding the Fourth Proportional to 21,527.60, 32,291.40 and 19,972.40

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Solution

The fourth proportional to 21,527.60, 32,291.40 and 19,972.40 is: 29,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,527.60 : 32,291.40 = 19,972.40 : x
  2. Step 2: Convert to fraction form
    21,527.60/32,291.40 = 19,972.40/x
  3. Step 3: Cross multiply
    21,527.60x = 32,291.40 × 19,972.40
  4. Step 4: Simplify right side
    21,527.60x = 644,936,757.36
  5. Step 5: Solve for x
    x = 644,936,757.36/21,527.60
  6. Step 6: Final answer
    x = 29,958.60

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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.