Home / 30,534.53-42,140.24-17,105.60

Finding the Fourth Proportional to 30,534.53, 42,140.24 and 17,105.60

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Solution

The fourth proportional to 30,534.53, 42,140.24 and 17,105.60 is: 23,607.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.53 : 42,140.24 = 17,105.60 : x
  2. Step 2: Convert to fraction form
    30,534.53/42,140.24 = 17,105.60/x
  3. Step 3: Cross multiply
    30,534.53x = 42,140.24 × 17,105.60
  4. Step 4: Simplify right side
    30,534.53x = 720,833,793.11
  5. Step 5: Solve for x
    x = 720,833,793.11/30,534.53
  6. Step 6: Final answer
    x = 23,607.17

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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.