Home / 28,660.77-43,003.31-13,880.70

Finding the Fourth Proportional to 28,660.77, 43,003.31 and 13,880.70

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Solution

The fourth proportional to 28,660.77, 43,003.31 and 13,880.70 is: 20,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.77 : 43,003.31 = 13,880.70 : x
  2. Step 2: Convert to fraction form
    28,660.77/43,003.31 = 13,880.70/x
  3. Step 3: Cross multiply
    28,660.77x = 43,003.31 × 13,880.70
  4. Step 4: Simplify right side
    28,660.77x = 596,915,975.71
  5. Step 5: Solve for x
    x = 596,915,975.71/28,660.77
  6. Step 6: Final answer
    x = 20,826.93

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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.