Home / 21,415.20-32,137.07-9,565.04

Finding the Fourth Proportional to 21,415.20, 32,137.07 and 9,565.04

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Solution

The fourth proportional to 21,415.20, 32,137.07 and 9,565.04 is: 14,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.20 : 32,137.07 = 9,565.04 : x
  2. Step 2: Convert to fraction form
    21,415.20/32,137.07 = 9,565.04/x
  3. Step 3: Cross multiply
    21,415.20x = 32,137.07 × 9,565.04
  4. Step 4: Simplify right side
    21,415.20x = 307,392,360.03
  5. Step 5: Solve for x
    x = 307,392,360.03/21,415.20
  6. Step 6: Final answer
    x = 14,353.93

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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.