Home / 39,121.63-58,668.55-14,155.21

Finding the Fourth Proportional to 39,121.63, 58,668.55 and 14,155.21

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Solution

The fourth proportional to 39,121.63, 58,668.55 and 14,155.21 is: 21,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,121.63 : 58,668.55 = 14,155.21 : x
  2. Step 2: Convert to fraction form
    39,121.63/58,668.55 = 14,155.21/x
  3. Step 3: Cross multiply
    39,121.63x = 58,668.55 × 14,155.21
  4. Step 4: Simplify right side
    39,121.63x = 830,465,433.21
  5. Step 5: Solve for x
    x = 830,465,433.21/39,121.63
  6. Step 6: Final answer
    x = 21,227.78

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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.