Home / 28,740.68-39,669.10-19,181.06

Finding the Fourth Proportional to 28,740.68, 39,669.10 and 19,181.06

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Solution

The fourth proportional to 28,740.68, 39,669.10 and 19,181.06 is: 26,474.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,740.68 : 39,669.10 = 19,181.06 : x
  2. Step 2: Convert to fraction form
    28,740.68/39,669.10 = 19,181.06/x
  3. Step 3: Cross multiply
    28,740.68x = 39,669.10 × 19,181.06
  4. Step 4: Simplify right side
    28,740.68x = 760,895,140.95
  5. Step 5: Solve for x
    x = 760,895,140.95/28,740.68
  6. Step 6: Final answer
    x = 26,474.50

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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.