Home / 30,891.16-42,629.75-16,744.01

Finding the Fourth Proportional to 30,891.16, 42,629.75 and 16,744.01

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Solution

The fourth proportional to 30,891.16, 42,629.75 and 16,744.01 is: 23,106.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.16 : 42,629.75 = 16,744.01 : x
  2. Step 2: Convert to fraction form
    30,891.16/42,629.75 = 16,744.01/x
  3. Step 3: Cross multiply
    30,891.16x = 42,629.75 × 16,744.01
  4. Step 4: Simplify right side
    30,891.16x = 713,792,895.58
  5. Step 5: Solve for x
    x = 713,792,895.58/30,891.16
  6. Step 6: Final answer
    x = 23,106.70

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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.