Home / 32,909.56-45,394.27-21,579.80

Finding the Fourth Proportional to 32,909.56, 45,394.27 and 21,579.80

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Solution

The fourth proportional to 32,909.56, 45,394.27 and 21,579.80 is: 29,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,909.56 : 45,394.27 = 21,579.80 : x
  2. Step 2: Convert to fraction form
    32,909.56/45,394.27 = 21,579.80/x
  3. Step 3: Cross multiply
    32,909.56x = 45,394.27 × 21,579.80
  4. Step 4: Simplify right side
    32,909.56x = 979,598,986.83
  5. Step 5: Solve for x
    x = 979,598,986.83/32,909.56
  6. Step 6: Final answer
    x = 29,766.40

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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.