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Finding the Fourth Proportional to 21,801.54, 32,706.66 and 7,009.32

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Solution

The fourth proportional to 21,801.54, 32,706.66 and 7,009.32 is: 10,515.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,801.54 : 32,706.66 = 7,009.32 : x
  2. Step 2: Convert to fraction form
    21,801.54/32,706.66 = 7,009.32/x
  3. Step 3: Cross multiply
    21,801.54x = 32,706.66 × 7,009.32
  4. Step 4: Simplify right side
    21,801.54x = 229,251,446.07
  5. Step 5: Solve for x
    x = 229,251,446.07/21,801.54
  6. Step 6: Final answer
    x = 10,515.38

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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.