Home / 18,921.51-28,227.53-17,579.07

Finding the Fourth Proportional to 18,921.51, 28,227.53 and 17,579.07

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Solution

The fourth proportional to 18,921.51, 28,227.53 and 17,579.07 is: 26,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.51 : 28,227.53 = 17,579.07 : x
  2. Step 2: Convert to fraction form
    18,921.51/28,227.53 = 17,579.07/x
  3. Step 3: Cross multiply
    18,921.51x = 28,227.53 × 17,579.07
  4. Step 4: Simplify right side
    18,921.51x = 496,213,637.90
  5. Step 5: Solve for x
    x = 496,213,637.90/18,921.51
  6. Step 6: Final answer
    x = 26,224.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.