Home / 20,970.83-28,938.93-12,011.96

Finding the Fourth Proportional to 20,970.83, 28,938.93 and 12,011.96

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Solution

The fourth proportional to 20,970.83, 28,938.93 and 12,011.96 is: 16,576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,970.83 : 28,938.93 = 12,011.96 : x
  2. Step 2: Convert to fraction form
    20,970.83/28,938.93 = 12,011.96/x
  3. Step 3: Cross multiply
    20,970.83x = 28,938.93 × 12,011.96
  4. Step 4: Simplify right side
    20,970.83x = 347,613,269.60
  5. Step 5: Solve for x
    x = 347,613,269.60/20,970.83
  6. Step 6: Final answer
    x = 16,576.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.