Home / 21,231.18-29,248.38-14,845.83

Finding the Fourth Proportional to 21,231.18, 29,248.38 and 14,845.83

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Solution

The fourth proportional to 21,231.18, 29,248.38 and 14,845.83 is: 20,451.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231.18 : 29,248.38 = 14,845.83 : x
  2. Step 2: Convert to fraction form
    21,231.18/29,248.38 = 14,845.83/x
  3. Step 3: Cross multiply
    21,231.18x = 29,248.38 × 14,845.83
  4. Step 4: Simplify right side
    21,231.18x = 434,216,477.26
  5. Step 5: Solve for x
    x = 434,216,477.26/21,231.18
  6. Step 6: Final answer
    x = 20,451.83

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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.