Home / 31,709.48-43,765.26-18,280.22

Finding the Fourth Proportional to 31,709.48, 43,765.26 and 18,280.22

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Solution

The fourth proportional to 31,709.48, 43,765.26 and 18,280.22 is: 25,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709.48 : 43,765.26 = 18,280.22 : x
  2. Step 2: Convert to fraction form
    31,709.48/43,765.26 = 18,280.22/x
  3. Step 3: Cross multiply
    31,709.48x = 43,765.26 × 18,280.22
  4. Step 4: Simplify right side
    31,709.48x = 800,038,581.16
  5. Step 5: Solve for x
    x = 800,038,581.16/31,709.48
  6. Step 6: Final answer
    x = 25,230.26

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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.