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Finding the Fourth Proportional to 30,468.88, 42,049.20 and 17,041.39

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Solution

The fourth proportional to 30,468.88, 42,049.20 and 17,041.39 is: 23,518.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,468.88 : 42,049.20 = 17,041.39 : x
  2. Step 2: Convert to fraction form
    30,468.88/42,049.20 = 17,041.39/x
  3. Step 3: Cross multiply
    30,468.88x = 42,049.20 × 17,041.39
  4. Step 4: Simplify right side
    30,468.88x = 716,576,816.39
  5. Step 5: Solve for x
    x = 716,576,816.39/30,468.88
  6. Step 6: Final answer
    x = 23,518.32

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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.