Home / 31,216.57-43,078.21-17,069.40

Finding the Fourth Proportional to 31,216.57, 43,078.21 and 17,069.40

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Solution

The fourth proportional to 31,216.57, 43,078.21 and 17,069.40 is: 23,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,216.57 : 43,078.21 = 17,069.40 : x
  2. Step 2: Convert to fraction form
    31,216.57/43,078.21 = 17,069.40/x
  3. Step 3: Cross multiply
    31,216.57x = 43,078.21 × 17,069.40
  4. Step 4: Simplify right side
    31,216.57x = 735,319,155.10
  5. Step 5: Solve for x
    x = 735,319,155.10/31,216.57
  6. Step 6: Final answer
    x = 23,555.41

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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.