Home / 21,572.76-29,771.37-12,141.93

Finding the Fourth Proportional to 21,572.76, 29,771.37 and 12,141.93

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Solution

The fourth proportional to 21,572.76, 29,771.37 and 12,141.93 is: 16,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.76 : 29,771.37 = 12,141.93 : x
  2. Step 2: Convert to fraction form
    21,572.76/29,771.37 = 12,141.93/x
  3. Step 3: Cross multiply
    21,572.76x = 29,771.37 × 12,141.93
  4. Step 4: Simplify right side
    21,572.76x = 361,481,890.54
  5. Step 5: Solve for x
    x = 361,481,890.54/21,572.76
  6. Step 6: Final answer
    x = 16,756.40

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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.