Home / 19,820.73-27,361.32-13,875.73

Finding the Fourth Proportional to 19,820.73, 27,361.32 and 13,875.73

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Solution

The fourth proportional to 19,820.73, 27,361.32 and 13,875.73 is: 19,154.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,820.73 : 27,361.32 = 13,875.73 : x
  2. Step 2: Convert to fraction form
    19,820.73/27,361.32 = 13,875.73/x
  3. Step 3: Cross multiply
    19,820.73x = 27,361.32 × 13,875.73
  4. Step 4: Simplify right side
    19,820.73x = 379,658,288.76
  5. Step 5: Solve for x
    x = 379,658,288.76/19,820.73
  6. Step 6: Final answer
    x = 19,154.61

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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.