Home / 28,758.51-39,719.94-19,181.75

Finding the Fourth Proportional to 28,758.51, 39,719.94 and 19,181.75

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Solution

The fourth proportional to 28,758.51, 39,719.94 and 19,181.75 is: 26,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.51 : 39,719.94 = 19,181.75 : x
  2. Step 2: Convert to fraction form
    28,758.51/39,719.94 = 19,181.75/x
  3. Step 3: Cross multiply
    28,758.51x = 39,719.94 × 19,181.75
  4. Step 4: Simplify right side
    28,758.51x = 761,897,688.56
  5. Step 5: Solve for x
    x = 761,897,688.56/28,758.51
  6. Step 6: Final answer
    x = 26,492.95

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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.