Home / 19,788.33-27,312.02-18,192.45

Finding the Fourth Proportional to 19,788.33, 27,312.02 and 18,192.45

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Solution

The fourth proportional to 19,788.33, 27,312.02 and 18,192.45 is: 25,109.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.33 : 27,312.02 = 18,192.45 : x
  2. Step 2: Convert to fraction form
    19,788.33/27,312.02 = 18,192.45/x
  3. Step 3: Cross multiply
    19,788.33x = 27,312.02 × 18,192.45
  4. Step 4: Simplify right side
    19,788.33x = 496,872,330.73
  5. Step 5: Solve for x
    x = 496,872,330.73/19,788.33
  6. Step 6: Final answer
    x = 25,109.37

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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.