Home / 21,458.28-32,186.28-5,875.80

Finding the Fourth Proportional to 21,458.28, 32,186.28 and 5,875.80

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Solution

The fourth proportional to 21,458.28, 32,186.28 and 5,875.80 is: 8,813.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.28 : 32,186.28 = 5,875.80 : x
  2. Step 2: Convert to fraction form
    21,458.28/32,186.28 = 5,875.80/x
  3. Step 3: Cross multiply
    21,458.28x = 32,186.28 × 5,875.80
  4. Step 4: Simplify right side
    21,458.28x = 189,120,144.02
  5. Step 5: Solve for x
    x = 189,120,144.02/21,458.28
  6. Step 6: Final answer
    x = 8,813.39

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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.