Home / 19,257.84-28,867.61-13,402.14

Finding the Fourth Proportional to 19,257.84, 28,867.61 and 13,402.14

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Solution

The fourth proportional to 19,257.84, 28,867.61 and 13,402.14 is: 20,089.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,257.84 : 28,867.61 = 13,402.14 : x
  2. Step 2: Convert to fraction form
    19,257.84/28,867.61 = 13,402.14/x
  3. Step 3: Cross multiply
    19,257.84x = 28,867.61 × 13,402.14
  4. Step 4: Simplify right side
    19,257.84x = 386,887,683.67
  5. Step 5: Solve for x
    x = 386,887,683.67/19,257.84
  6. Step 6: Final answer
    x = 20,089.88

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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.