Home / 32,909.40-45,394.05-21,579.66

Finding the Fourth Proportional to 32,909.40, 45,394.05 and 21,579.66

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Solution

The fourth proportional to 32,909.40, 45,394.05 and 21,579.66 is: 29,766.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,909.40 : 45,394.05 = 21,579.66 : x
  2. Step 2: Convert to fraction form
    32,909.40/45,394.05 = 21,579.66/x
  3. Step 3: Cross multiply
    32,909.40x = 45,394.05 × 21,579.66
  4. Step 4: Simplify right side
    32,909.40x = 979,588,165.02
  5. Step 5: Solve for x
    x = 979,588,165.02/32,909.40
  6. Step 6: Final answer
    x = 29,766.21

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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.