Home / 37,379.88-56,079.28-12,420.06

Finding the Fourth Proportional to 37,379.88, 56,079.28 and 12,420.06

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Solution

The fourth proportional to 37,379.88, 56,079.28 and 12,420.06 is: 18,633.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,379.88 : 56,079.28 = 12,420.06 : x
  2. Step 2: Convert to fraction form
    37,379.88/56,079.28 = 12,420.06/x
  3. Step 3: Cross multiply
    37,379.88x = 56,079.28 × 12,420.06
  4. Step 4: Simplify right side
    37,379.88x = 696,508,022.36
  5. Step 5: Solve for x
    x = 696,508,022.36/37,379.88
  6. Step 6: Final answer
    x = 18,633.23

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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.