Home / 39,487.08-54,493.11-21,582.84

Finding the Fourth Proportional to 39,487.08, 54,493.11 and 21,582.84

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Solution

The fourth proportional to 39,487.08, 54,493.11 and 21,582.84 is: 29,784.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,487.08 : 54,493.11 = 21,582.84 : x
  2. Step 2: Convert to fraction form
    39,487.08/54,493.11 = 21,582.84/x
  3. Step 3: Cross multiply
    39,487.08x = 54,493.11 × 21,582.84
  4. Step 4: Simplify right side
    39,487.08x = 1,176,116,074.23
  5. Step 5: Solve for x
    x = 1,176,116,074.23/39,487.08
  6. Step 6: Final answer
    x = 29,784.83

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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.