Home / 39,555.62-54,586.29-21,405.92

Finding the Fourth Proportional to 39,555.62, 54,586.29 and 21,405.92

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Solution

The fourth proportional to 39,555.62, 54,586.29 and 21,405.92 is: 29,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,555.62 : 54,586.29 = 21,405.92 : x
  2. Step 2: Convert to fraction form
    39,555.62/54,586.29 = 21,405.92/x
  3. Step 3: Cross multiply
    39,555.62x = 54,586.29 × 21,405.92
  4. Step 4: Simplify right side
    39,555.62x = 1,168,469,566.86
  5. Step 5: Solve for x
    x = 1,168,469,566.86/39,555.62
  6. Step 6: Final answer
    x = 29,539.92

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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.