Home / 19,861.70-27,421.98-12,316.04

Finding the Fourth Proportional to 19,861.70, 27,421.98 and 12,316.04

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Solution

The fourth proportional to 19,861.70, 27,421.98 and 12,316.04 is: 17,004.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.70 : 27,421.98 = 12,316.04 : x
  2. Step 2: Convert to fraction form
    19,861.70/27,421.98 = 12,316.04/x
  3. Step 3: Cross multiply
    19,861.70x = 27,421.98 × 12,316.04
  4. Step 4: Simplify right side
    19,861.70x = 337,730,202.56
  5. Step 5: Solve for x
    x = 337,730,202.56/19,861.70
  6. Step 6: Final answer
    x = 17,004.09

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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.