Home / 39,600.96-54,649.56-21,696.12

Finding the Fourth Proportional to 39,600.96, 54,649.56 and 21,696.12

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Solution

The fourth proportional to 39,600.96, 54,649.56 and 21,696.12 is: 29,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,600.96 : 54,649.56 = 21,696.12 : x
  2. Step 2: Convert to fraction form
    39,600.96/54,649.56 = 21,696.12/x
  3. Step 3: Cross multiply
    39,600.96x = 54,649.56 × 21,696.12
  4. Step 4: Simplify right side
    39,600.96x = 1,185,683,411.71
  5. Step 5: Solve for x
    x = 1,185,683,411.71/39,600.96
  6. Step 6: Final answer
    x = 29,940.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.