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Finding the Fourth Proportional to 21,810.12, 32,716.01 and 7,017.09

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Solution

The fourth proportional to 21,810.12, 32,716.01 and 7,017.09 is: 10,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,810.12 : 32,716.01 = 7,017.09 : x
  2. Step 2: Convert to fraction form
    21,810.12/32,716.01 = 7,017.09/x
  3. Step 3: Cross multiply
    21,810.12x = 32,716.01 × 7,017.09
  4. Step 4: Simplify right side
    21,810.12x = 229,571,186.61
  5. Step 5: Solve for x
    x = 229,571,186.61/21,810.12
  6. Step 6: Final answer
    x = 10,525.90

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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.