Home / 37,143.68-51,258.12-20,376.32

Finding the Fourth Proportional to 37,143.68, 51,258.12 and 20,376.32

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Solution

The fourth proportional to 37,143.68, 51,258.12 and 20,376.32 is: 28,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,143.68 : 51,258.12 = 20,376.32 : x
  2. Step 2: Convert to fraction form
    37,143.68/51,258.12 = 20,376.32/x
  3. Step 3: Cross multiply
    37,143.68x = 51,258.12 × 20,376.32
  4. Step 4: Simplify right side
    37,143.68x = 1,044,451,855.72
  5. Step 5: Solve for x
    x = 1,044,451,855.72/37,143.68
  6. Step 6: Final answer
    x = 28,119.23

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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.