Home / 30,645.54-42,291.18-18,070.02

Finding the Fourth Proportional to 30,645.54, 42,291.18 and 18,070.02

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Solution

The fourth proportional to 30,645.54, 42,291.18 and 18,070.02 is: 24,936.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645.54 : 42,291.18 = 18,070.02 : x
  2. Step 2: Convert to fraction form
    30,645.54/42,291.18 = 18,070.02/x
  3. Step 3: Cross multiply
    30,645.54x = 42,291.18 × 18,070.02
  4. Step 4: Simplify right side
    30,645.54x = 764,202,468.42
  5. Step 5: Solve for x
    x = 764,202,468.42/30,645.54
  6. Step 6: Final answer
    x = 24,936.83

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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.