Home / 31,190.42-43,038.78-17,759.81

Finding the Fourth Proportional to 31,190.42, 43,038.78 and 17,759.81

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Solution

The fourth proportional to 31,190.42, 43,038.78 and 17,759.81 is: 24,506.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,190.42 : 43,038.78 = 17,759.81 : x
  2. Step 2: Convert to fraction form
    31,190.42/43,038.78 = 17,759.81/x
  3. Step 3: Cross multiply
    31,190.42x = 43,038.78 × 17,759.81
  4. Step 4: Simplify right side
    31,190.42x = 764,360,340.24
  5. Step 5: Solve for x
    x = 764,360,340.24/31,190.42
  6. Step 6: Final answer
    x = 24,506.26

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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.