Home / 21,093.52-31,588.44-13,317.52

Finding the Fourth Proportional to 21,093.52, 31,588.44 and 13,317.52

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Solution

The fourth proportional to 21,093.52, 31,588.44 and 13,317.52 is: 19,943.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.52 : 31,588.44 = 13,317.52 : x
  2. Step 2: Convert to fraction form
    21,093.52/31,588.44 = 13,317.52/x
  3. Step 3: Cross multiply
    21,093.52x = 31,588.44 × 13,317.52
  4. Step 4: Simplify right side
    21,093.52x = 420,679,681.47
  5. Step 5: Solve for x
    x = 420,679,681.47/21,093.52
  6. Step 6: Final answer
    x = 19,943.55

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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.