Home / 36,123.42-49,856.76-21,785.79

Finding the Fourth Proportional to 36,123.42, 49,856.76 and 21,785.79

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Solution

The fourth proportional to 36,123.42, 49,856.76 and 21,785.79 is: 30,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,123.42 : 49,856.76 = 21,785.79 : x
  2. Step 2: Convert to fraction form
    36,123.42/49,856.76 = 21,785.79/x
  3. Step 3: Cross multiply
    36,123.42x = 49,856.76 × 21,785.79
  4. Step 4: Simplify right side
    36,123.42x = 1,086,168,903.44
  5. Step 5: Solve for x
    x = 1,086,168,903.44/36,123.42
  6. Step 6: Final answer
    x = 30,068.27

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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.