Home / 20,455.81-30,706.49-10,592.44

Finding the Fourth Proportional to 20,455.81, 30,706.49 and 10,592.44

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Solution

The fourth proportional to 20,455.81, 30,706.49 and 10,592.44 is: 15,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455.81 : 30,706.49 = 10,592.44 : x
  2. Step 2: Convert to fraction form
    20,455.81/30,706.49 = 10,592.44/x
  3. Step 3: Cross multiply
    20,455.81x = 30,706.49 × 10,592.44
  4. Step 4: Simplify right side
    20,455.81x = 325,256,652.94
  5. Step 5: Solve for x
    x = 325,256,652.94/20,455.81
  6. Step 6: Final answer
    x = 15,900.45

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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.