Home / 21,022.08-31,537.60-7,169.92

Finding the Fourth Proportional to 21,022.08, 31,537.60 and 7,169.92

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Solution

The fourth proportional to 21,022.08, 31,537.60 and 7,169.92 is: 10,756.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.08 : 31,537.60 = 7,169.92 : x
  2. Step 2: Convert to fraction form
    21,022.08/31,537.60 = 7,169.92/x
  3. Step 3: Cross multiply
    21,022.08x = 31,537.60 × 7,169.92
  4. Step 4: Simplify right side
    21,022.08x = 226,122,068.99
  5. Step 5: Solve for x
    x = 226,122,068.99/21,022.08
  6. Step 6: Final answer
    x = 10,756.41

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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.