Home / 31,743.16-43,803.87-18,313.62

Finding the Fourth Proportional to 31,743.16, 43,803.87 and 18,313.62

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Solution

The fourth proportional to 31,743.16, 43,803.87 and 18,313.62 is: 25,271.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,743.16 : 43,803.87 = 18,313.62 : x
  2. Step 2: Convert to fraction form
    31,743.16/43,803.87 = 18,313.62/x
  3. Step 3: Cross multiply
    31,743.16x = 43,803.87 × 18,313.62
  4. Step 4: Simplify right side
    31,743.16x = 802,207,429.71
  5. Step 5: Solve for x
    x = 802,207,429.71/31,743.16
  6. Step 6: Final answer
    x = 25,271.82

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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.