Home / 31,320.60-43,222.20-17,173.20

Finding the Fourth Proportional to 31,320.60, 43,222.20 and 17,173.20

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Solution

The fourth proportional to 31,320.60, 43,222.20 and 17,173.20 is: 23,698.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.60 : 43,222.20 = 17,173.20 : x
  2. Step 2: Convert to fraction form
    31,320.60/43,222.20 = 17,173.20/x
  3. Step 3: Cross multiply
    31,320.60x = 43,222.20 × 17,173.20
  4. Step 4: Simplify right side
    31,320.60x = 742,263,485.04
  5. Step 5: Solve for x
    x = 742,263,485.04/31,320.60
  6. Step 6: Final answer
    x = 23,698.89

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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.