Home / 39,871.77-55,025.53-21,966.77

Finding the Fourth Proportional to 39,871.77, 55,025.53 and 21,966.77

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Solution

The fourth proportional to 39,871.77, 55,025.53 and 21,966.77 is: 30,315.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,871.77 : 55,025.53 = 21,966.77 : x
  2. Step 2: Convert to fraction form
    39,871.77/55,025.53 = 21,966.77/x
  3. Step 3: Cross multiply
    39,871.77x = 55,025.53 × 21,966.77
  4. Step 4: Simplify right side
    39,871.77x = 1,208,733,244.28
  5. Step 5: Solve for x
    x = 1,208,733,244.28/39,871.77
  6. Step 6: Final answer
    x = 30,315.52

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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.