Home / 35,970.14-49,643.29-20,661.48

Finding the Fourth Proportional to 35,970.14, 49,643.29 and 20,661.48

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Solution

The fourth proportional to 35,970.14, 49,643.29 and 20,661.48 is: 28,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,970.14 : 49,643.29 = 20,661.48 : x
  2. Step 2: Convert to fraction form
    35,970.14/49,643.29 = 20,661.48/x
  3. Step 3: Cross multiply
    35,970.14x = 49,643.29 × 20,661.48
  4. Step 4: Simplify right side
    35,970.14x = 1,025,703,869.30
  5. Step 5: Solve for x
    x = 1,025,703,869.30/35,970.14
  6. Step 6: Final answer
    x = 28,515.42

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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.