Home / 17,905.40-26,858.10-5,424.81

Finding the Fourth Proportional to 17,905.40, 26,858.10 and 5,424.81

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Solution

The fourth proportional to 17,905.40, 26,858.10 and 5,424.81 is: 8,137.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,905.40 : 26,858.10 = 5,424.81 : x
  2. Step 2: Convert to fraction form
    17,905.40/26,858.10 = 5,424.81/x
  3. Step 3: Cross multiply
    17,905.40x = 26,858.10 × 5,424.81
  4. Step 4: Simplify right side
    17,905.40x = 145,700,089.46
  5. Step 5: Solve for x
    x = 145,700,089.46/17,905.40
  6. Step 6: Final answer
    x = 8,137.22

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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.