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Finding the Fourth Proportional to 21,495.16, 32,243.82 and 9,008.20

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Solution

The fourth proportional to 21,495.16, 32,243.82 and 9,008.20 is: 13,512.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,495.16 : 32,243.82 = 9,008.20 : x
  2. Step 2: Convert to fraction form
    21,495.16/32,243.82 = 9,008.20/x
  3. Step 3: Cross multiply
    21,495.16x = 32,243.82 × 9,008.20
  4. Step 4: Simplify right side
    21,495.16x = 290,458,779.32
  5. Step 5: Solve for x
    x = 290,458,779.32/21,495.16
  6. Step 6: Final answer
    x = 13,512.75

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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.