Home / 28,240.64-42,358.66-9,520.27

Finding the Fourth Proportional to 28,240.64, 42,358.66 and 9,520.27

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Solution

The fourth proportional to 28,240.64, 42,358.66 and 9,520.27 is: 14,279.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.64 : 42,358.66 = 9,520.27 : x
  2. Step 2: Convert to fraction form
    28,240.64/42,358.66 = 9,520.27/x
  3. Step 3: Cross multiply
    28,240.64x = 42,358.66 × 9,520.27
  4. Step 4: Simplify right side
    28,240.64x = 403,265,880.04
  5. Step 5: Solve for x
    x = 403,265,880.04/28,240.64
  6. Step 6: Final answer
    x = 14,279.63

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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.