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Finding the Fourth Proportional to 21,967.95, 32,951.91 and 8,820.32

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Solution

The fourth proportional to 21,967.95, 32,951.91 and 8,820.32 is: 13,230.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.95 : 32,951.91 = 8,820.32 : x
  2. Step 2: Convert to fraction form
    21,967.95/32,951.91 = 8,820.32/x
  3. Step 3: Cross multiply
    21,967.95x = 32,951.91 × 8,820.32
  4. Step 4: Simplify right side
    21,967.95x = 290,646,226.05
  5. Step 5: Solve for x
    x = 290,646,226.05/21,967.95
  6. Step 6: Final answer
    x = 13,230.47

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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.