Home / 30,891.51-42,630.18-16,744.41

Finding the Fourth Proportional to 30,891.51, 42,630.18 and 16,744.41

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Solution

The fourth proportional to 30,891.51, 42,630.18 and 16,744.41 is: 23,107.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.51 : 42,630.18 = 16,744.41 : x
  2. Step 2: Convert to fraction form
    30,891.51/42,630.18 = 16,744.41/x
  3. Step 3: Cross multiply
    30,891.51x = 42,630.18 × 16,744.41
  4. Step 4: Simplify right side
    30,891.51x = 713,817,212.29
  5. Step 5: Solve for x
    x = 713,817,212.29/30,891.51
  6. Step 6: Final answer
    x = 23,107.23

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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.