Home / 30,539.12-42,152.28-17,967.92

Finding the Fourth Proportional to 30,539.12, 42,152.28 and 17,967.92

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Solution

The fourth proportional to 30,539.12, 42,152.28 and 17,967.92 is: 24,800.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.12 : 42,152.28 = 17,967.92 : x
  2. Step 2: Convert to fraction form
    30,539.12/42,152.28 = 17,967.92/x
  3. Step 3: Cross multiply
    30,539.12x = 42,152.28 × 17,967.92
  4. Step 4: Simplify right side
    30,539.12x = 757,388,794.86
  5. Step 5: Solve for x
    x = 757,388,794.86/30,539.12
  6. Step 6: Final answer
    x = 24,800.61

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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.