Home / 40,223.05-60,343.08-12,145.21

Finding the Fourth Proportional to 40,223.05, 60,343.08 and 12,145.21

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Solution

The fourth proportional to 40,223.05, 60,343.08 and 12,145.21 is: 18,220.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,223.05 : 60,343.08 = 12,145.21 : x
  2. Step 2: Convert to fraction form
    40,223.05/60,343.08 = 12,145.21/x
  3. Step 3: Cross multiply
    40,223.05x = 60,343.08 × 12,145.21
  4. Step 4: Simplify right side
    40,223.05x = 732,879,378.65
  5. Step 5: Solve for x
    x = 732,879,378.65/40,223.05
  6. Step 6: Final answer
    x = 18,220.38

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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.