Home / 20,681.48-31,022.22-7,533.92

Finding the Fourth Proportional to 20,681.48, 31,022.22 and 7,533.92

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Solution

The fourth proportional to 20,681.48, 31,022.22 and 7,533.92 is: 11,300.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.48 : 31,022.22 = 7,533.92 : x
  2. Step 2: Convert to fraction form
    20,681.48/31,022.22 = 7,533.92/x
  3. Step 3: Cross multiply
    20,681.48x = 31,022.22 × 7,533.92
  4. Step 4: Simplify right side
    20,681.48x = 233,718,923.70
  5. Step 5: Solve for x
    x = 233,718,923.70/20,681.48
  6. Step 6: Final answer
    x = 11,300.88

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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.