Home / 18,156.56-27,131.36-13,623.93

Finding the Fourth Proportional to 18,156.56, 27,131.36 and 13,623.93

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Solution

The fourth proportional to 18,156.56, 27,131.36 and 13,623.93 is: 20,358.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.56 : 27,131.36 = 13,623.93 : x
  2. Step 2: Convert to fraction form
    18,156.56/27,131.36 = 13,623.93/x
  3. Step 3: Cross multiply
    18,156.56x = 27,131.36 × 13,623.93
  4. Step 4: Simplify right side
    18,156.56x = 369,635,681.33
  5. Step 5: Solve for x
    x = 369,635,681.33/18,156.56
  6. Step 6: Final answer
    x = 20,358.25

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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.