Home / 21,342.68-32,013.60-9,647.72

Finding the Fourth Proportional to 21,342.68, 32,013.60 and 9,647.72

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Solution

The fourth proportional to 21,342.68, 32,013.60 and 9,647.72 is: 14,471.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,342.68 : 32,013.60 = 9,647.72 : x
  2. Step 2: Convert to fraction form
    21,342.68/32,013.60 = 9,647.72/x
  3. Step 3: Cross multiply
    21,342.68x = 32,013.60 × 9,647.72
  4. Step 4: Simplify right side
    21,342.68x = 308,858,248.99
  5. Step 5: Solve for x
    x = 308,858,248.99/21,342.68
  6. Step 6: Final answer
    x = 14,471.39

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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.