Home / 21,705.02-32,557.92-7,664.70

Finding the Fourth Proportional to 21,705.02, 32,557.92 and 7,664.70

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Solution

The fourth proportional to 21,705.02, 32,557.92 and 7,664.70 is: 11,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.02 : 32,557.92 = 7,664.70 : x
  2. Step 2: Convert to fraction form
    21,705.02/32,557.92 = 7,664.70/x
  3. Step 3: Cross multiply
    21,705.02x = 32,557.92 × 7,664.70
  4. Step 4: Simplify right side
    21,705.02x = 249,546,689.42
  5. Step 5: Solve for x
    x = 249,546,689.42/21,705.02
  6. Step 6: Final answer
    x = 11,497.19

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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.