Home / 19,938.72-27,492.96-12,759.24

Finding the Fourth Proportional to 19,938.72, 27,492.96 and 12,759.24

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Solution

The fourth proportional to 19,938.72, 27,492.96 and 12,759.24 is: 17,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.72 : 27,492.96 = 12,759.24 : x
  2. Step 2: Convert to fraction form
    19,938.72/27,492.96 = 12,759.24/x
  3. Step 3: Cross multiply
    19,938.72x = 27,492.96 × 12,759.24
  4. Step 4: Simplify right side
    19,938.72x = 350,789,274.95
  5. Step 5: Solve for x
    x = 350,789,274.95/19,938.72
  6. Step 6: Final answer
    x = 17,593.37

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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.