Home / 19,281.96-28,930.02-13,778.62

Finding the Fourth Proportional to 19,281.96, 28,930.02 and 13,778.62

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Solution

The fourth proportional to 19,281.96, 28,930.02 and 13,778.62 is: 20,672.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,281.96 : 28,930.02 = 13,778.62 : x
  2. Step 2: Convert to fraction form
    19,281.96/28,930.02 = 13,778.62/x
  3. Step 3: Cross multiply
    19,281.96x = 28,930.02 × 13,778.62
  4. Step 4: Simplify right side
    19,281.96x = 398,615,752.17
  5. Step 5: Solve for x
    x = 398,615,752.17/19,281.96
  6. Step 6: Final answer
    x = 20,672.99

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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.