Home / 30,179.32-45,238.84-15,140.49

Finding the Fourth Proportional to 30,179.32, 45,238.84 and 15,140.49

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Solution

The fourth proportional to 30,179.32, 45,238.84 and 15,140.49 is: 22,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,179.32 : 45,238.84 = 15,140.49 : x
  2. Step 2: Convert to fraction form
    30,179.32/45,238.84 = 15,140.49/x
  3. Step 3: Cross multiply
    30,179.32x = 45,238.84 × 15,140.49
  4. Step 4: Simplify right side
    30,179.32x = 684,937,997.13
  5. Step 5: Solve for x
    x = 684,937,997.13/30,179.32
  6. Step 6: Final answer
    x = 22,695.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.