Home / 20,680.52-31,033.13-7,533.81

Finding the Fourth Proportional to 20,680.52, 31,033.13 and 7,533.81

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Solution

The fourth proportional to 20,680.52, 31,033.13 and 7,533.81 is: 11,305.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.52 : 31,033.13 = 7,533.81 : x
  2. Step 2: Convert to fraction form
    20,680.52/31,033.13 = 7,533.81/x
  3. Step 3: Cross multiply
    20,680.52x = 31,033.13 × 7,533.81
  4. Step 4: Simplify right side
    20,680.52x = 233,797,667.46
  5. Step 5: Solve for x
    x = 233,797,667.46/20,680.52
  6. Step 6: Final answer
    x = 11,305.21

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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.