Home / 31,074.21-42,880.94-17,643.71

Finding the Fourth Proportional to 31,074.21, 42,880.94 and 17,643.71

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Solution

The fourth proportional to 31,074.21, 42,880.94 and 17,643.71 is: 24,347.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,074.21 : 42,880.94 = 17,643.71 : x
  2. Step 2: Convert to fraction form
    31,074.21/42,880.94 = 17,643.71/x
  3. Step 3: Cross multiply
    31,074.21x = 42,880.94 × 17,643.71
  4. Step 4: Simplify right side
    31,074.21x = 756,578,567.26
  5. Step 5: Solve for x
    x = 756,578,567.26/31,074.21
  6. Step 6: Final answer
    x = 24,347.48

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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.