Home / 32,979.60-45,514.44-20,408.40

Finding the Fourth Proportional to 32,979.60, 45,514.44 and 20,408.40

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Solution

The fourth proportional to 32,979.60, 45,514.44 and 20,408.40 is: 28,165.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,979.60 : 45,514.44 = 20,408.40 : x
  2. Step 2: Convert to fraction form
    32,979.60/45,514.44 = 20,408.40/x
  3. Step 3: Cross multiply
    32,979.60x = 45,514.44 × 20,408.40
  4. Step 4: Simplify right side
    32,979.60x = 928,876,897.30
  5. Step 5: Solve for x
    x = 928,876,897.30/32,979.60
  6. Step 6: Final answer
    x = 28,165.20

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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.