Home / 31,268.63-43,151.27-22,331.36

Finding the Fourth Proportional to 31,268.63, 43,151.27 and 22,331.36

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Solution

The fourth proportional to 31,268.63, 43,151.27 and 22,331.36 is: 30,817.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,268.63 : 43,151.27 = 22,331.36 : x
  2. Step 2: Convert to fraction form
    31,268.63/43,151.27 = 22,331.36/x
  3. Step 3: Cross multiply
    31,268.63x = 43,151.27 × 22,331.36
  4. Step 4: Simplify right side
    31,268.63x = 963,626,541.05
  5. Step 5: Solve for x
    x = 963,626,541.05/31,268.63
  6. Step 6: Final answer
    x = 30,817.67

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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.