Home / 32,818.21-45,288.08-18,478.78

Finding the Fourth Proportional to 32,818.21, 45,288.08 and 18,478.78

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Solution

The fourth proportional to 32,818.21, 45,288.08 and 18,478.78 is: 25,500.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,818.21 : 45,288.08 = 18,478.78 : x
  2. Step 2: Convert to fraction form
    32,818.21/45,288.08 = 18,478.78/x
  3. Step 3: Cross multiply
    32,818.21x = 45,288.08 × 18,478.78
  4. Step 4: Simplify right side
    32,818.21x = 836,868,261.33
  5. Step 5: Solve for x
    x = 836,868,261.33/32,818.21
  6. Step 6: Final answer
    x = 25,500.12

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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.