Home / 21,995.20-32,980.65-8,832.70

Finding the Fourth Proportional to 21,995.20, 32,980.65 and 8,832.70

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Solution

The fourth proportional to 21,995.20, 32,980.65 and 8,832.70 is: 13,244.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,995.20 : 32,980.65 = 8,832.70 : x
  2. Step 2: Convert to fraction form
    21,995.20/32,980.65 = 8,832.70/x
  3. Step 3: Cross multiply
    21,995.20x = 32,980.65 × 8,832.70
  4. Step 4: Simplify right side
    21,995.20x = 291,308,187.26
  5. Step 5: Solve for x
    x = 291,308,187.26/21,995.20
  6. Step 6: Final answer
    x = 13,244.17

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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.