Home / 28,795.80-43,145.10-13,972.80

Finding the Fourth Proportional to 28,795.80, 43,145.10 and 13,972.80

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Solution

The fourth proportional to 28,795.80, 43,145.10 and 13,972.80 is: 20,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,795.80 : 43,145.10 = 13,972.80 : x
  2. Step 2: Convert to fraction form
    28,795.80/43,145.10 = 13,972.80/x
  3. Step 3: Cross multiply
    28,795.80x = 43,145.10 × 13,972.80
  4. Step 4: Simplify right side
    28,795.80x = 602,857,853.28
  5. Step 5: Solve for x
    x = 602,857,853.28/28,795.80
  6. Step 6: Final answer
    x = 20,935.62

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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.