Home / 18,433.79-27,516.10-15,818.10

Finding the Fourth Proportional to 18,433.79, 27,516.10 and 15,818.10

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Solution

The fourth proportional to 18,433.79, 27,516.10 and 15,818.10 is: 23,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,433.79 : 27,516.10 = 15,818.10 : x
  2. Step 2: Convert to fraction form
    18,433.79/27,516.10 = 15,818.10/x
  3. Step 3: Cross multiply
    18,433.79x = 27,516.10 × 15,818.10
  4. Step 4: Simplify right side
    18,433.79x = 435,252,426.56
  5. Step 5: Solve for x
    x = 435,252,426.56/18,433.79
  6. Step 6: Final answer
    x = 23,611.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.