Home / 20,932.08-31,371.36-9,814.24

Finding the Fourth Proportional to 20,932.08, 31,371.36 and 9,814.24

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Solution

The fourth proportional to 20,932.08, 31,371.36 and 9,814.24 is: 14,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.08 : 31,371.36 = 9,814.24 : x
  2. Step 2: Convert to fraction form
    20,932.08/31,371.36 = 9,814.24/x
  3. Step 3: Cross multiply
    20,932.08x = 31,371.36 × 9,814.24
  4. Step 4: Simplify right side
    20,932.08x = 307,886,056.17
  5. Step 5: Solve for x
    x = 307,886,056.17/20,932.08
  6. Step 6: Final answer
    x = 14,708.81

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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.