Home / 37,785.48-52,143.12-21,869.61

Finding the Fourth Proportional to 37,785.48, 52,143.12 and 21,869.61

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Solution

The fourth proportional to 37,785.48, 52,143.12 and 21,869.61 is: 30,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,785.48 : 52,143.12 = 21,869.61 : x
  2. Step 2: Convert to fraction form
    37,785.48/52,143.12 = 21,869.61/x
  3. Step 3: Cross multiply
    37,785.48x = 52,143.12 × 21,869.61
  4. Step 4: Simplify right side
    37,785.48x = 1,140,349,698.58
  5. Step 5: Solve for x
    x = 1,140,349,698.58/37,785.48
  6. Step 6: Final answer
    x = 30,179.57

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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.