Home / 20,376.46-30,557.01-8,531.05

Finding the Fourth Proportional to 20,376.46, 30,557.01 and 8,531.05

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Solution

The fourth proportional to 20,376.46, 30,557.01 and 8,531.05 is: 12,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.46 : 30,557.01 = 8,531.05 : x
  2. Step 2: Convert to fraction form
    20,376.46/30,557.01 = 8,531.05/x
  3. Step 3: Cross multiply
    20,376.46x = 30,557.01 × 8,531.05
  4. Step 4: Simplify right side
    20,376.46x = 260,683,303.77
  5. Step 5: Solve for x
    x = 260,683,303.77/20,376.46
  6. Step 6: Final answer
    x = 12,793.36

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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.