Home / 21,230.18-31,834.32-9,533.38

Finding the Fourth Proportional to 21,230.18, 31,834.32 and 9,533.38

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Solution

The fourth proportional to 21,230.18, 31,834.32 and 9,533.38 is: 14,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.18 : 31,834.32 = 9,533.38 : x
  2. Step 2: Convert to fraction form
    21,230.18/31,834.32 = 9,533.38/x
  3. Step 3: Cross multiply
    21,230.18x = 31,834.32 × 9,533.38
  4. Step 4: Simplify right side
    21,230.18x = 303,488,669.60
  5. Step 5: Solve for x
    x = 303,488,669.60/21,230.18
  6. Step 6: Final answer
    x = 14,295.15

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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.