Home / 39,581.99-54,623.23-21,432.91

Finding the Fourth Proportional to 39,581.99, 54,623.23 and 21,432.91

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Solution

The fourth proportional to 39,581.99, 54,623.23 and 21,432.91 is: 29,577.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,581.99 : 54,623.23 = 21,432.91 : x
  2. Step 2: Convert to fraction form
    39,581.99/54,623.23 = 21,432.91/x
  3. Step 3: Cross multiply
    39,581.99x = 54,623.23 × 21,432.91
  4. Step 4: Simplify right side
    39,581.99x = 1,170,734,684.78
  5. Step 5: Solve for x
    x = 1,170,734,684.78/39,581.99
  6. Step 6: Final answer
    x = 29,577.46

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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.