Home / 20,530.07-30,807.27-8,683.22

Finding the Fourth Proportional to 20,530.07, 30,807.27 and 8,683.22

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Solution

The fourth proportional to 20,530.07, 30,807.27 and 8,683.22 is: 13,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,530.07 : 30,807.27 = 8,683.22 : x
  2. Step 2: Convert to fraction form
    20,530.07/30,807.27 = 8,683.22/x
  3. Step 3: Cross multiply
    20,530.07x = 30,807.27 × 8,683.22
  4. Step 4: Simplify right side
    20,530.07x = 267,506,148.97
  5. Step 5: Solve for x
    x = 267,506,148.97/20,530.07
  6. Step 6: Final answer
    x = 13,029.97

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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.