Home / 39,865.77-55,022.49-22,880.07

Finding the Fourth Proportional to 39,865.77, 55,022.49 and 22,880.07

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Solution

The fourth proportional to 39,865.77, 55,022.49 and 22,880.07 is: 31,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,865.77 : 55,022.49 = 22,880.07 : x
  2. Step 2: Convert to fraction form
    39,865.77/55,022.49 = 22,880.07/x
  3. Step 3: Cross multiply
    39,865.77x = 55,022.49 × 22,880.07
  4. Step 4: Simplify right side
    39,865.77x = 1,258,918,422.77
  5. Step 5: Solve for x
    x = 1,258,918,422.77/39,865.77
  6. Step 6: Final answer
    x = 31,578.93

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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.