Home / 39,051.87-53,891.78-21,146.95

Finding the Fourth Proportional to 39,051.87, 53,891.78 and 21,146.95

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Solution

The fourth proportional to 39,051.87, 53,891.78 and 21,146.95 is: 29,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,051.87 : 53,891.78 = 21,146.95 : x
  2. Step 2: Convert to fraction form
    39,051.87/53,891.78 = 21,146.95/x
  3. Step 3: Cross multiply
    39,051.87x = 53,891.78 × 21,146.95
  4. Step 4: Simplify right side
    39,051.87x = 1,139,646,706.08
  5. Step 5: Solve for x
    x = 1,139,646,706.08/39,051.87
  6. Step 6: Final answer
    x = 29,182.90

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1.5x scale

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.