Home / 21,619.31-29,835.74-16,304.90

Finding the Fourth Proportional to 21,619.31, 29,835.74 and 16,304.90

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Solution

The fourth proportional to 21,619.31, 29,835.74 and 16,304.90 is: 22,501.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.31 : 29,835.74 = 16,304.90 : x
  2. Step 2: Convert to fraction form
    21,619.31/29,835.74 = 16,304.90/x
  3. Step 3: Cross multiply
    21,619.31x = 29,835.74 × 16,304.90
  4. Step 4: Simplify right side
    21,619.31x = 486,468,648.71
  5. Step 5: Solve for x
    x = 486,468,648.71/21,619.31
  6. Step 6: Final answer
    x = 22,501.59

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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.