Home / 20,601.10-28,431.62-12,535.32

Finding the Fourth Proportional to 20,601.10, 28,431.62 and 12,535.32

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Solution

The fourth proportional to 20,601.10, 28,431.62 and 12,535.32 is: 17,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.10 : 28,431.62 = 12,535.32 : x
  2. Step 2: Convert to fraction form
    20,601.10/28,431.62 = 12,535.32/x
  3. Step 3: Cross multiply
    20,601.10x = 28,431.62 × 12,535.32
  4. Step 4: Simplify right side
    20,601.10x = 356,399,392.14
  5. Step 5: Solve for x
    x = 356,399,392.14/20,601.10
  6. Step 6: Final answer
    x = 17,300.02

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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.