Home / 20,731.02-31,051.17-11,944.14

Finding the Fourth Proportional to 20,731.02, 31,051.17 and 11,944.14

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Solution

The fourth proportional to 20,731.02, 31,051.17 and 11,944.14 is: 17,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.02 : 31,051.17 = 11,944.14 : x
  2. Step 2: Convert to fraction form
    20,731.02/31,051.17 = 11,944.14/x
  3. Step 3: Cross multiply
    20,731.02x = 31,051.17 × 11,944.14
  4. Step 4: Simplify right side
    20,731.02x = 370,879,521.64
  5. Step 5: Solve for x
    x = 370,879,521.64/20,731.02
  6. Step 6: Final answer
    x = 17,890.08

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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.