Home / 38,088.64-57,149.10-20,537.98

Finding the Fourth Proportional to 38,088.64, 57,149.10 and 20,537.98

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Solution

The fourth proportional to 38,088.64, 57,149.10 and 20,537.98 is: 30,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,088.64 : 57,149.10 = 20,537.98 : x
  2. Step 2: Convert to fraction form
    38,088.64/57,149.10 = 20,537.98/x
  3. Step 3: Cross multiply
    38,088.64x = 57,149.10 × 20,537.98
  4. Step 4: Simplify right side
    38,088.64x = 1,173,727,072.82
  5. Step 5: Solve for x
    x = 1,173,727,072.82/38,088.64
  6. Step 6: Final answer
    x = 30,815.67

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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.