Home / 32,761.40-45,209.39-18,420.82

Finding the Fourth Proportional to 32,761.40, 45,209.39 and 18,420.82

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Solution

The fourth proportional to 32,761.40, 45,209.39 and 18,420.82 is: 25,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,761.40 : 45,209.39 = 18,420.82 : x
  2. Step 2: Convert to fraction form
    32,761.40/45,209.39 = 18,420.82/x
  3. Step 3: Cross multiply
    32,761.40x = 45,209.39 × 18,420.82
  4. Step 4: Simplify right side
    32,761.40x = 832,793,830.37
  5. Step 5: Solve for x
    x = 832,793,830.37/32,761.40
  6. Step 6: Final answer
    x = 25,419.97

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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.