Home / 20,493.94-28,281.75-11,541.60

Finding the Fourth Proportional to 20,493.94, 28,281.75 and 11,541.60

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Solution

The fourth proportional to 20,493.94, 28,281.75 and 11,541.60 is: 15,927.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,493.94 : 28,281.75 = 11,541.60 : x
  2. Step 2: Convert to fraction form
    20,493.94/28,281.75 = 11,541.60/x
  3. Step 3: Cross multiply
    20,493.94x = 28,281.75 × 11,541.60
  4. Step 4: Simplify right side
    20,493.94x = 326,416,446.68
  5. Step 5: Solve for x
    x = 326,416,446.68/20,493.94
  6. Step 6: Final answer
    x = 15,927.46

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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.