Home / 28,880.18-43,321.81-9,160.26

Finding the Fourth Proportional to 28,880.18, 43,321.81 and 9,160.26

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Solution

The fourth proportional to 28,880.18, 43,321.81 and 9,160.26 is: 13,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,880.18 : 43,321.81 = 9,160.26 : x
  2. Step 2: Convert to fraction form
    28,880.18/43,321.81 = 9,160.26/x
  3. Step 3: Cross multiply
    28,880.18x = 43,321.81 × 9,160.26
  4. Step 4: Simplify right side
    28,880.18x = 396,838,875.09
  5. Step 5: Solve for x
    x = 396,838,875.09/28,880.18
  6. Step 6: Final answer
    x = 13,740.87

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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.