Home / 20,960.04-28,924.38-11,528.40

Finding the Fourth Proportional to 20,960.04, 28,924.38 and 11,528.40

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Solution

The fourth proportional to 20,960.04, 28,924.38 and 11,528.40 is: 15,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.04 : 28,924.38 = 11,528.40 : x
  2. Step 2: Convert to fraction form
    20,960.04/28,924.38 = 11,528.40/x
  3. Step 3: Cross multiply
    20,960.04x = 28,924.38 × 11,528.40
  4. Step 4: Simplify right side
    20,960.04x = 333,451,822.39
  5. Step 5: Solve for x
    x = 333,451,822.39/20,960.04
  6. Step 6: Final answer
    x = 15,908.93

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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.