Home / 35,918.28-49,564.86-20,809.70

Finding the Fourth Proportional to 35,918.28, 49,564.86 and 20,809.70

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Solution

The fourth proportional to 35,918.28, 49,564.86 and 20,809.70 is: 28,716.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,918.28 : 49,564.86 = 20,809.70 : x
  2. Step 2: Convert to fraction form
    35,918.28/49,564.86 = 20,809.70/x
  3. Step 3: Cross multiply
    35,918.28x = 49,564.86 × 20,809.70
  4. Step 4: Simplify right side
    35,918.28x = 1,031,429,867.14
  5. Step 5: Solve for x
    x = 1,031,429,867.14/35,918.28
  6. Step 6: Final answer
    x = 28,716.01

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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.