Home / 39,126.20-58,668.12-13,813.04

Finding the Fourth Proportional to 39,126.20, 58,668.12 and 13,813.04

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Solution

The fourth proportional to 39,126.20, 58,668.12 and 13,813.04 is: 20,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,126.20 : 58,668.12 = 13,813.04 : x
  2. Step 2: Convert to fraction form
    39,126.20/58,668.12 = 13,813.04/x
  3. Step 3: Cross multiply
    39,126.20x = 58,668.12 × 13,813.04
  4. Step 4: Simplify right side
    39,126.20x = 810,385,088.28
  5. Step 5: Solve for x
    x = 810,385,088.28/39,126.20
  6. Step 6: Final answer
    x = 20,712.08

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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.