Home / 38,139.44-52,626.76-21,785.45

Finding the Fourth Proportional to 38,139.44, 52,626.76 and 21,785.45

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Solution

The fourth proportional to 38,139.44, 52,626.76 and 21,785.45 is: 30,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,139.44 : 52,626.76 = 21,785.45 : x
  2. Step 2: Convert to fraction form
    38,139.44/52,626.76 = 21,785.45/x
  3. Step 3: Cross multiply
    38,139.44x = 52,626.76 × 21,785.45
  4. Step 4: Simplify right side
    38,139.44x = 1,146,497,331.04
  5. Step 5: Solve for x
    x = 1,146,497,331.04/38,139.44
  6. Step 6: Final answer
    x = 30,060.68

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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.