Home / 30,666.60-42,324.39-17,238.96

Finding the Fourth Proportional to 30,666.60, 42,324.39 and 17,238.96

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Solution

The fourth proportional to 30,666.60, 42,324.39 and 17,238.96 is: 23,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666.60 : 42,324.39 = 17,238.96 : x
  2. Step 2: Convert to fraction form
    30,666.60/42,324.39 = 17,238.96/x
  3. Step 3: Cross multiply
    30,666.60x = 42,324.39 × 17,238.96
  4. Step 4: Simplify right side
    30,666.60x = 729,628,466.23
  5. Step 5: Solve for x
    x = 729,628,466.23/30,666.60
  6. Step 6: Final answer
    x = 23,792.28

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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.