Home / 19,126.30-28,699.14-13,539.88

Finding the Fourth Proportional to 19,126.30, 28,699.14 and 13,539.88

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Solution

The fourth proportional to 19,126.30, 28,699.14 and 13,539.88 is: 20,316.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.30 : 28,699.14 = 13,539.88 : x
  2. Step 2: Convert to fraction form
    19,126.30/28,699.14 = 13,539.88/x
  3. Step 3: Cross multiply
    19,126.30x = 28,699.14 × 13,539.88
  4. Step 4: Simplify right side
    19,126.30x = 388,582,964.83
  5. Step 5: Solve for x
    x = 388,582,964.83/19,126.30
  6. Step 6: Final answer
    x = 20,316.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.