Home / 20,368.86-30,548.34-8,516.22

Finding the Fourth Proportional to 20,368.86, 30,548.34 and 8,516.22

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Solution

The fourth proportional to 20,368.86, 30,548.34 and 8,516.22 is: 12,772.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368.86 : 30,548.34 = 8,516.22 : x
  2. Step 2: Convert to fraction form
    20,368.86/30,548.34 = 8,516.22/x
  3. Step 3: Cross multiply
    20,368.86x = 30,548.34 × 8,516.22
  4. Step 4: Simplify right side
    20,368.86x = 260,156,384.07
  5. Step 5: Solve for x
    x = 260,156,384.07/20,368.86
  6. Step 6: Final answer
    x = 12,772.26

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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.