Home / 39,631.84-54,693.29-21,726.85

Finding the Fourth Proportional to 39,631.84, 54,693.29 and 21,726.85

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Solution

The fourth proportional to 39,631.84, 54,693.29 and 21,726.85 is: 29,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631.84 : 54,693.29 = 21,726.85 : x
  2. Step 2: Convert to fraction form
    39,631.84/54,693.29 = 21,726.85/x
  3. Step 3: Cross multiply
    39,631.84x = 54,693.29 × 21,726.85
  4. Step 4: Simplify right side
    39,631.84x = 1,188,312,907.84
  5. Step 5: Solve for x
    x = 1,188,312,907.84/39,631.84
  6. Step 6: Final answer
    x = 29,983.79

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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.