Home / 35,710.80-49,291.20-21,564.72

Finding the Fourth Proportional to 35,710.80, 49,291.20 and 21,564.72

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Solution

The fourth proportional to 35,710.80, 49,291.20 and 21,564.72 is: 29,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,710.80 : 49,291.20 = 21,564.72 : x
  2. Step 2: Convert to fraction form
    35,710.80/49,291.20 = 21,564.72/x
  3. Step 3: Cross multiply
    35,710.80x = 49,291.20 × 21,564.72
  4. Step 4: Simplify right side
    35,710.80x = 1,062,950,926.46
  5. Step 5: Solve for x
    x = 1,062,950,926.46/35,710.80
  6. Step 6: Final answer
    x = 29,765.53

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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.