Home / 21,317.16-31,973.58-5,736.36

Finding the Fourth Proportional to 21,317.16, 31,973.58 and 5,736.36

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Solution

The fourth proportional to 21,317.16, 31,973.58 and 5,736.36 is: 8,603.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,317.16 : 31,973.58 = 5,736.36 : x
  2. Step 2: Convert to fraction form
    21,317.16/31,973.58 = 5,736.36/x
  3. Step 3: Cross multiply
    21,317.16x = 31,973.58 × 5,736.36
  4. Step 4: Simplify right side
    21,317.16x = 183,411,965.37
  5. Step 5: Solve for x
    x = 183,411,965.37/21,317.16
  6. Step 6: Final answer
    x = 8,603.96

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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.