Home / 20,403.24-30,576.06-8,712.36

Finding the Fourth Proportional to 20,403.24, 30,576.06 and 8,712.36

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Solution

The fourth proportional to 20,403.24, 30,576.06 and 8,712.36 is: 13,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403.24 : 30,576.06 = 8,712.36 : x
  2. Step 2: Convert to fraction form
    20,403.24/30,576.06 = 8,712.36/x
  3. Step 3: Cross multiply
    20,403.24x = 30,576.06 × 8,712.36
  4. Step 4: Simplify right side
    20,403.24x = 266,389,642.10
  5. Step 5: Solve for x
    x = 266,389,642.10/20,403.24
  6. Step 6: Final answer
    x = 13,056.24

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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.