Home / 28,193.76-42,283.68-9,474.48

Finding the Fourth Proportional to 28,193.76, 42,283.68 and 9,474.48

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Solution

The fourth proportional to 28,193.76, 42,283.68 and 9,474.48 is: 14,209.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.76 : 42,283.68 = 9,474.48 : x
  2. Step 2: Convert to fraction form
    28,193.76/42,283.68 = 9,474.48/x
  3. Step 3: Cross multiply
    28,193.76x = 42,283.68 × 9,474.48
  4. Step 4: Simplify right side
    28,193.76x = 400,615,880.49
  5. Step 5: Solve for x
    x = 400,615,880.49/28,193.76
  6. Step 6: Final answer
    x = 14,209.38

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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.