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Finding the Fourth Proportional to 21,712.60, 32,573.01 and 7,477.29

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Solution

The fourth proportional to 21,712.60, 32,573.01 and 7,477.29 is: 11,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.60 : 32,573.01 = 7,477.29 : x
  2. Step 2: Convert to fraction form
    21,712.60/32,573.01 = 7,477.29/x
  3. Step 3: Cross multiply
    21,712.60x = 32,573.01 × 7,477.29
  4. Step 4: Simplify right side
    21,712.60x = 243,557,841.94
  5. Step 5: Solve for x
    x = 243,557,841.94/21,712.60
  6. Step 6: Final answer
    x = 11,217.35

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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.