Home / 20,344.95-28,068.12-11,845.62

Finding the Fourth Proportional to 20,344.95, 28,068.12 and 11,845.62

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Solution

The fourth proportional to 20,344.95, 28,068.12 and 11,845.62 is: 16,342.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.95 : 28,068.12 = 11,845.62 : x
  2. Step 2: Convert to fraction form
    20,344.95/28,068.12 = 11,845.62/x
  3. Step 3: Cross multiply
    20,344.95x = 28,068.12 × 11,845.62
  4. Step 4: Simplify right side
    20,344.95x = 332,484,283.63
  5. Step 5: Solve for x
    x = 332,484,283.63/20,344.95
  6. Step 6: Final answer
    x = 16,342.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.