Home / 28,760.40-43,140.60-27,505.80

Finding the Fourth Proportional to 28,760.40, 43,140.60 and 27,505.80

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Solution

The fourth proportional to 28,760.40, 43,140.60 and 27,505.80 is: 41,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.40 : 43,140.60 = 27,505.80 : x
  2. Step 2: Convert to fraction form
    28,760.40/43,140.60 = 27,505.80/x
  3. Step 3: Cross multiply
    28,760.40x = 43,140.60 × 27,505.80
  4. Step 4: Simplify right side
    28,760.40x = 1,186,616,715.48
  5. Step 5: Solve for x
    x = 1,186,616,715.48/28,760.40
  6. Step 6: Final answer
    x = 41,258.70

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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.