Home / 31,516.38-47,274.57-18,368.70

Finding the Fourth Proportional to 31,516.38, 47,274.57 and 18,368.70

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Solution

The fourth proportional to 31,516.38, 47,274.57 and 18,368.70 is: 27,553.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,516.38 : 47,274.57 = 18,368.70 : x
  2. Step 2: Convert to fraction form
    31,516.38/47,274.57 = 18,368.70/x
  3. Step 3: Cross multiply
    31,516.38x = 47,274.57 × 18,368.70
  4. Step 4: Simplify right side
    31,516.38x = 868,372,393.96
  5. Step 5: Solve for x
    x = 868,372,393.96/31,516.38
  6. Step 6: Final answer
    x = 27,553.05

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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.