Home / 37,380.13-56,079.65-12,420.32

Finding the Fourth Proportional to 37,380.13, 56,079.65 and 12,420.32

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Solution

The fourth proportional to 37,380.13, 56,079.65 and 12,420.32 is: 18,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,380.13 : 56,079.65 = 12,420.32 : x
  2. Step 2: Convert to fraction form
    37,380.13/56,079.65 = 12,420.32/x
  3. Step 3: Cross multiply
    37,380.13x = 56,079.65 × 12,420.32
  4. Step 4: Simplify right side
    37,380.13x = 696,526,949.14
  5. Step 5: Solve for x
    x = 696,526,949.14/37,380.13
  6. Step 6: Final answer
    x = 18,633.62

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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.