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Finding the Fourth Proportional to 22,038.40, 32,960.40 and 18,539.20

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Solution

The fourth proportional to 22,038.40, 32,960.40 and 18,539.20 is: 27,727.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,038.40 : 32,960.40 = 18,539.20 : x
  2. Step 2: Convert to fraction form
    22,038.40/32,960.40 = 18,539.20/x
  3. Step 3: Cross multiply
    22,038.40x = 32,960.40 × 18,539.20
  4. Step 4: Simplify right side
    22,038.40x = 611,059,447.68
  5. Step 5: Solve for x
    x = 611,059,447.68/22,038.40
  6. Step 6: Final answer
    x = 27,727.03

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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.