Home / 32,780.08-45,236.64-18,635.86

Finding the Fourth Proportional to 32,780.08, 45,236.64 and 18,635.86

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Solution

The fourth proportional to 32,780.08, 45,236.64 and 18,635.86 is: 25,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,780.08 : 45,236.64 = 18,635.86 : x
  2. Step 2: Convert to fraction form
    32,780.08/45,236.64 = 18,635.86/x
  3. Step 3: Cross multiply
    32,780.08x = 45,236.64 × 18,635.86
  4. Step 4: Simplify right side
    32,780.08x = 843,023,689.91
  5. Step 5: Solve for x
    x = 843,023,689.91/32,780.08
  6. Step 6: Final answer
    x = 25,717.56

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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.