Home / 39,763.74-54,874.08-21,860.58

Finding the Fourth Proportional to 39,763.74, 54,874.08 and 21,860.58

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Solution

The fourth proportional to 39,763.74, 54,874.08 and 21,860.58 is: 30,167.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,763.74 : 54,874.08 = 21,860.58 : x
  2. Step 2: Convert to fraction form
    39,763.74/54,874.08 = 21,860.58/x
  3. Step 3: Cross multiply
    39,763.74x = 54,874.08 × 21,860.58
  4. Step 4: Simplify right side
    39,763.74x = 1,199,579,215.77
  5. Step 5: Solve for x
    x = 1,199,579,215.77/39,763.74
  6. Step 6: Final answer
    x = 30,167.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.