Home / 36,818.72-55,211.67-13,428.75

Finding the Fourth Proportional to 36,818.72, 55,211.67 and 13,428.75

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Solution

The fourth proportional to 36,818.72, 55,211.67 and 13,428.75 is: 20,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,818.72 : 55,211.67 = 13,428.75 : x
  2. Step 2: Convert to fraction form
    36,818.72/55,211.67 = 13,428.75/x
  3. Step 3: Cross multiply
    36,818.72x = 55,211.67 × 13,428.75
  4. Step 4: Simplify right side
    36,818.72x = 741,423,713.51
  5. Step 5: Solve for x
    x = 741,423,713.51/36,818.72
  6. Step 6: Final answer
    x = 20,137.14

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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.