Home / 21,188.52-29,238.22-12,573.22

Finding the Fourth Proportional to 21,188.52, 29,238.22 and 12,573.22

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Solution

The fourth proportional to 21,188.52, 29,238.22 and 12,573.22 is: 17,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.52 : 29,238.22 = 12,573.22 : x
  2. Step 2: Convert to fraction form
    21,188.52/29,238.22 = 12,573.22/x
  3. Step 3: Cross multiply
    21,188.52x = 29,238.22 × 12,573.22
  4. Step 4: Simplify right side
    21,188.52x = 367,618,515.09
  5. Step 5: Solve for x
    x = 367,618,515.09/21,188.52
  6. Step 6: Final answer
    x = 17,349.89

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1.5x scale

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.