Home / 20,899.02-31,345.27-6,103.96

Finding the Fourth Proportional to 20,899.02, 31,345.27 and 6,103.96

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Solution

The fourth proportional to 20,899.02, 31,345.27 and 6,103.96 is: 9,154.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,899.02 : 31,345.27 = 6,103.96 : x
  2. Step 2: Convert to fraction form
    20,899.02/31,345.27 = 6,103.96/x
  3. Step 3: Cross multiply
    20,899.02x = 31,345.27 × 6,103.96
  4. Step 4: Simplify right side
    20,899.02x = 191,330,274.27
  5. Step 5: Solve for x
    x = 191,330,274.27/20,899.02
  6. Step 6: Final answer
    x = 9,154.99

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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.