Home / 47,121.90-65,022.74-28,002.48

Finding the Fourth Proportional to 47,121.90, 65,022.74 and 28,002.48

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Solution

The fourth proportional to 47,121.90, 65,022.74 and 28,002.48 is: 38,640.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,121.90 : 65,022.74 = 28,002.48 : x
  2. Step 2: Convert to fraction form
    47,121.90/65,022.74 = 28,002.48/x
  3. Step 3: Cross multiply
    47,121.90x = 65,022.74 × 28,002.48
  4. Step 4: Simplify right side
    47,121.90x = 1,820,797,836.38
  5. Step 5: Solve for x
    x = 1,820,797,836.38/47,121.90
  6. Step 6: Final answer
    x = 38,640.16

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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.