Home / 21,275.55-31,917.93-6,484.08

Finding the Fourth Proportional to 21,275.55, 31,917.93 and 6,484.08

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Solution

The fourth proportional to 21,275.55, 31,917.93 and 6,484.08 is: 9,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.55 : 31,917.93 = 6,484.08 : x
  2. Step 2: Convert to fraction form
    21,275.55/31,917.93 = 6,484.08/x
  3. Step 3: Cross multiply
    21,275.55x = 31,917.93 × 6,484.08
  4. Step 4: Simplify right side
    21,275.55x = 206,958,411.55
  5. Step 5: Solve for x
    x = 206,958,411.55/21,275.55
  6. Step 6: Final answer
    x = 9,727.52

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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.