Home / 30,128.46-41,577.18-17,381.46

Finding the Fourth Proportional to 30,128.46, 41,577.18 and 17,381.46

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Solution

The fourth proportional to 30,128.46, 41,577.18 and 17,381.46 is: 23,986.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,128.46 : 41,577.18 = 17,381.46 : x
  2. Step 2: Convert to fraction form
    30,128.46/41,577.18 = 17,381.46/x
  3. Step 3: Cross multiply
    30,128.46x = 41,577.18 × 17,381.46
  4. Step 4: Simplify right side
    30,128.46x = 722,672,091.08
  5. Step 5: Solve for x
    x = 722,672,091.08/30,128.46
  6. Step 6: Final answer
    x = 23,986.36

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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.