Home / 21,655.25-32,458.09-9,818.04

Finding the Fourth Proportional to 21,655.25, 32,458.09 and 9,818.04

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Solution

The fourth proportional to 21,655.25, 32,458.09 and 9,818.04 is: 14,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,655.25 : 32,458.09 = 9,818.04 : x
  2. Step 2: Convert to fraction form
    21,655.25/32,458.09 = 9,818.04/x
  3. Step 3: Cross multiply
    21,655.25x = 32,458.09 × 9,818.04
  4. Step 4: Simplify right side
    21,655.25x = 318,674,825.94
  5. Step 5: Solve for x
    x = 318,674,825.94/21,655.25
  6. Step 6: Final answer
    x = 14,715.82

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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.