Home / 19,255.74-28,871.14-12,661.93

Finding the Fourth Proportional to 19,255.74, 28,871.14 and 12,661.93

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Solution

The fourth proportional to 19,255.74, 28,871.14 and 12,661.93 is: 18,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.74 : 28,871.14 = 12,661.93 : x
  2. Step 2: Convert to fraction form
    19,255.74/28,871.14 = 12,661.93/x
  3. Step 3: Cross multiply
    19,255.74x = 28,871.14 × 12,661.93
  4. Step 4: Simplify right side
    19,255.74x = 365,564,353.70
  5. Step 5: Solve for x
    x = 365,564,353.70/19,255.74
  6. Step 6: Final answer
    x = 18,984.70

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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.