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Finding the Fourth Proportional to 21,655.07, 32,482.60 and 5,239.07

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Solution

The fourth proportional to 21,655.07, 32,482.60 and 5,239.07 is: 7,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.07 : 32,482.60 = 5,239.07 : x
  2. Step 2: Convert to fraction form
    21,655.07/32,482.60 = 5,239.07/x
  3. Step 3: Cross multiply
    21,655.07x = 32,482.60 × 5,239.07
  4. Step 4: Simplify right side
    21,655.07x = 170,178,426.57
  5. Step 5: Solve for x
    x = 170,178,426.57/21,655.07
  6. Step 6: Final answer
    x = 7,858.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.