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Finding the Fourth Proportional to 21,967.70, 32,951.53 and 8,820.06

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Solution

The fourth proportional to 21,967.70, 32,951.53 and 8,820.06 is: 13,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.70 : 32,951.53 = 8,820.06 : x
  2. Step 2: Convert to fraction form
    21,967.70/32,951.53 = 8,820.06/x
  3. Step 3: Cross multiply
    21,967.70x = 32,951.53 × 8,820.06
  4. Step 4: Simplify right side
    21,967.70x = 290,634,471.69
  5. Step 5: Solve for x
    x = 290,634,471.69/21,967.70
  6. Step 6: Final answer
    x = 13,230.08

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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.