Home / 21,235.60-31,844.76-9,545.68

Finding the Fourth Proportional to 21,235.60, 31,844.76 and 9,545.68

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Solution

The fourth proportional to 21,235.60, 31,844.76 and 9,545.68 is: 14,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.60 : 31,844.76 = 9,545.68 : x
  2. Step 2: Convert to fraction form
    21,235.60/31,844.76 = 9,545.68/x
  3. Step 3: Cross multiply
    21,235.60x = 31,844.76 × 9,545.68
  4. Step 4: Simplify right side
    21,235.60x = 303,979,888.64
  5. Step 5: Solve for x
    x = 303,979,888.64/21,235.60
  6. Step 6: Final answer
    x = 14,314.64

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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.