Home / 21,133.09-31,697.19-5,551.93

Finding the Fourth Proportional to 21,133.09, 31,697.19 and 5,551.93

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Solution

The fourth proportional to 21,133.09, 31,697.19 and 5,551.93 is: 8,327.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.09 : 31,697.19 = 5,551.93 : x
  2. Step 2: Convert to fraction form
    21,133.09/31,697.19 = 5,551.93/x
  3. Step 3: Cross multiply
    21,133.09x = 31,697.19 × 5,551.93
  4. Step 4: Simplify right side
    21,133.09x = 175,980,580.08
  5. Step 5: Solve for x
    x = 175,980,580.08/21,133.09
  6. Step 6: Final answer
    x = 8,327.25

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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.