Home / 40,129.88-55,379.70-22,225.19

Finding the Fourth Proportional to 40,129.88, 55,379.70 and 22,225.19

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Solution

The fourth proportional to 40,129.88, 55,379.70 and 22,225.19 is: 30,671.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.88 : 55,379.70 = 22,225.19 : x
  2. Step 2: Convert to fraction form
    40,129.88/55,379.70 = 22,225.19/x
  3. Step 3: Cross multiply
    40,129.88x = 55,379.70 × 22,225.19
  4. Step 4: Simplify right side
    40,129.88x = 1,230,824,077.74
  5. Step 5: Solve for x
    x = 1,230,824,077.74/40,129.88
  6. Step 6: Final answer
    x = 30,671.01

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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.