Home / 19,178.76-28,810.06-13,667.52

Finding the Fourth Proportional to 19,178.76, 28,810.06 and 13,667.52

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Solution

The fourth proportional to 19,178.76, 28,810.06 and 13,667.52 is: 20,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,178.76 : 28,810.06 = 13,667.52 : x
  2. Step 2: Convert to fraction form
    19,178.76/28,810.06 = 13,667.52/x
  3. Step 3: Cross multiply
    19,178.76x = 28,810.06 × 13,667.52
  4. Step 4: Simplify right side
    19,178.76x = 393,762,071.25
  5. Step 5: Solve for x
    x = 393,762,071.25/19,178.76
  6. Step 6: Final answer
    x = 20,531.15

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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.