Home / 30,534.66-42,140.92-17,108.30

Finding the Fourth Proportional to 30,534.66, 42,140.92 and 17,108.30

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Solution

The fourth proportional to 30,534.66, 42,140.92 and 17,108.30 is: 23,611.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.66 : 42,140.92 = 17,108.30 : x
  2. Step 2: Convert to fraction form
    30,534.66/42,140.92 = 17,108.30/x
  3. Step 3: Cross multiply
    30,534.66x = 42,140.92 × 17,108.30
  4. Step 4: Simplify right side
    30,534.66x = 720,959,501.64
  5. Step 5: Solve for x
    x = 720,959,501.64/30,534.66
  6. Step 6: Final answer
    x = 23,611.18

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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.