Home / 20,746.53-31,071.06-10,183.59

Finding the Fourth Proportional to 20,746.53, 31,071.06 and 10,183.59

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Solution

The fourth proportional to 20,746.53, 31,071.06 and 10,183.59 is: 15,251.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.53 : 31,071.06 = 10,183.59 : x
  2. Step 2: Convert to fraction form
    20,746.53/31,071.06 = 10,183.59/x
  3. Step 3: Cross multiply
    20,746.53x = 31,071.06 × 10,183.59
  4. Step 4: Simplify right side
    20,746.53x = 316,414,935.91
  5. Step 5: Solve for x
    x = 316,414,935.91/20,746.53
  6. Step 6: Final answer
    x = 15,251.46

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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.