Home / 20,932.14-31,386.38-6,888.37

Finding the Fourth Proportional to 20,932.14, 31,386.38 and 6,888.37

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Solution

The fourth proportional to 20,932.14, 31,386.38 and 6,888.37 is: 10,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.14 : 31,386.38 = 6,888.37 : x
  2. Step 2: Convert to fraction form
    20,932.14/31,386.38 = 6,888.37/x
  3. Step 3: Cross multiply
    20,932.14x = 31,386.38 × 6,888.37
  4. Step 4: Simplify right side
    20,932.14x = 216,201,042.42
  5. Step 5: Solve for x
    x = 216,201,042.42/20,932.14
  6. Step 6: Final answer
    x = 10,328.66

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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.