Home / 39,624.35-54,682.34-21,719.23

Finding the Fourth Proportional to 39,624.35, 54,682.34 and 21,719.23

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Solution

The fourth proportional to 39,624.35, 54,682.34 and 21,719.23 is: 29,972.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,624.35 : 54,682.34 = 21,719.23 : x
  2. Step 2: Convert to fraction form
    39,624.35/54,682.34 = 21,719.23/x
  3. Step 3: Cross multiply
    39,624.35x = 54,682.34 × 21,719.23
  4. Step 4: Simplify right side
    39,624.35x = 1,187,658,074.10
  5. Step 5: Solve for x
    x = 1,187,658,074.10/39,624.35
  6. Step 6: Final answer
    x = 29,972.94

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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.