Home / 40,129.65-55,378.25-22,225.41

Finding the Fourth Proportional to 40,129.65, 55,378.25 and 22,225.41

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Solution

The fourth proportional to 40,129.65, 55,378.25 and 22,225.41 is: 30,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,129.65 : 55,378.25 = 22,225.41 : x
  2. Step 2: Convert to fraction form
    40,129.65/55,378.25 = 22,225.41/x
  3. Step 3: Cross multiply
    40,129.65x = 55,378.25 × 22,225.41
  4. Step 4: Simplify right side
    40,129.65x = 1,230,804,200.21
  5. Step 5: Solve for x
    x = 1,230,804,200.21/40,129.65
  6. Step 6: Final answer
    x = 30,670.69

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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.