Home / 31,139.10-46,679.49-15,338.03

Finding the Fourth Proportional to 31,139.10, 46,679.49 and 15,338.03

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Solution

The fourth proportional to 31,139.10, 46,679.49 and 15,338.03 is: 22,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,139.10 : 46,679.49 = 15,338.03 : x
  2. Step 2: Convert to fraction form
    31,139.10/46,679.49 = 15,338.03/x
  3. Step 3: Cross multiply
    31,139.10x = 46,679.49 × 15,338.03
  4. Step 4: Simplify right side
    31,139.10x = 715,971,184.61
  5. Step 5: Solve for x
    x = 715,971,184.61/31,139.10
  6. Step 6: Final answer
    x = 22,992.67

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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.