Home / 21,419.20-32,129.04-10,323.52

Finding the Fourth Proportional to 21,419.20, 32,129.04 and 10,323.52

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Solution

The fourth proportional to 21,419.20, 32,129.04 and 10,323.52 is: 15,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419.20 : 32,129.04 = 10,323.52 : x
  2. Step 2: Convert to fraction form
    21,419.20/32,129.04 = 10,323.52/x
  3. Step 3: Cross multiply
    21,419.20x = 32,129.04 × 10,323.52
  4. Step 4: Simplify right side
    21,419.20x = 331,684,787.02
  5. Step 5: Solve for x
    x = 331,684,787.02/21,419.20
  6. Step 6: Final answer
    x = 15,485.40

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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.