Home / 30,560.80-42,174.12-17,132.64

Finding the Fourth Proportional to 30,560.80, 42,174.12 and 17,132.64

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Solution

The fourth proportional to 30,560.80, 42,174.12 and 17,132.64 is: 23,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.80 : 42,174.12 = 17,132.64 : x
  2. Step 2: Convert to fraction form
    30,560.80/42,174.12 = 17,132.64/x
  3. Step 3: Cross multiply
    30,560.80x = 42,174.12 × 17,132.64
  4. Step 4: Simplify right side
    30,560.80x = 722,554,015.28
  5. Step 5: Solve for x
    x = 722,554,015.28/30,560.80
  6. Step 6: Final answer
    x = 23,643.16

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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.