Home / 39,960.58-59,940.85-11,880.51

Finding the Fourth Proportional to 39,960.58, 59,940.85 and 11,880.51

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Solution

The fourth proportional to 39,960.58, 59,940.85 and 11,880.51 is: 17,820.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.58 : 59,940.85 = 11,880.51 : x
  2. Step 2: Convert to fraction form
    39,960.58/59,940.85 = 11,880.51/x
  3. Step 3: Cross multiply
    39,960.58x = 59,940.85 × 11,880.51
  4. Step 4: Simplify right side
    39,960.58x = 712,127,867.83
  5. Step 5: Solve for x
    x = 712,127,867.83/39,960.58
  6. Step 6: Final answer
    x = 17,820.76

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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.