Home / 21,276.02-31,918.76-6,486.08

Finding the Fourth Proportional to 21,276.02, 31,918.76 and 6,486.08

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Solution

The fourth proportional to 21,276.02, 31,918.76 and 6,486.08 is: 9,730.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.02 : 31,918.76 = 6,486.08 : x
  2. Step 2: Convert to fraction form
    21,276.02/31,918.76 = 6,486.08/x
  3. Step 3: Cross multiply
    21,276.02x = 31,918.76 × 6,486.08
  4. Step 4: Simplify right side
    21,276.02x = 207,027,710.66
  5. Step 5: Solve for x
    x = 207,027,710.66/21,276.02
  6. Step 6: Final answer
    x = 9,730.57

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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.