Home / 21,276.08-31,919.23-6,484.10

Finding the Fourth Proportional to 21,276.08, 31,919.23 and 6,484.10

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Solution

The fourth proportional to 21,276.08, 31,919.23 and 6,484.10 is: 9,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.08 : 31,919.23 = 6,484.10 : x
  2. Step 2: Convert to fraction form
    21,276.08/31,919.23 = 6,484.10/x
  3. Step 3: Cross multiply
    21,276.08x = 31,919.23 × 6,484.10
  4. Step 4: Simplify right side
    21,276.08x = 206,967,303.44
  5. Step 5: Solve for x
    x = 206,967,303.44/21,276.08
  6. Step 6: Final answer
    x = 9,727.70

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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.