Home / 37,142.32-55,661.10-20,509.84

Finding the Fourth Proportional to 37,142.32, 55,661.10 and 20,509.84

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Solution

The fourth proportional to 37,142.32, 55,661.10 and 20,509.84 is: 30,735.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,142.32 : 55,661.10 = 20,509.84 : x
  2. Step 2: Convert to fraction form
    37,142.32/55,661.10 = 20,509.84/x
  3. Step 3: Cross multiply
    37,142.32x = 55,661.10 × 20,509.84
  4. Step 4: Simplify right side
    37,142.32x = 1,141,600,255.22
  5. Step 5: Solve for x
    x = 1,141,600,255.22/37,142.32
  6. Step 6: Final answer
    x = 30,735.84

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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.