Home / 21,100.48-31,649.56-6,309.52

Finding the Fourth Proportional to 21,100.48, 31,649.56 and 6,309.52

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Solution

The fourth proportional to 21,100.48, 31,649.56 and 6,309.52 is: 9,463.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100.48 : 31,649.56 = 6,309.52 : x
  2. Step 2: Convert to fraction form
    21,100.48/31,649.56 = 6,309.52/x
  3. Step 3: Cross multiply
    21,100.48x = 31,649.56 × 6,309.52
  4. Step 4: Simplify right side
    21,100.48x = 199,693,531.81
  5. Step 5: Solve for x
    x = 199,693,531.81/21,100.48
  6. Step 6: Final answer
    x = 9,463.93

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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.