Home / 31,320.21-43,221.69-17,173.05

Finding the Fourth Proportional to 31,320.21, 43,221.69 and 17,173.05

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Solution

The fourth proportional to 31,320.21, 43,221.69 and 17,173.05 is: 23,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.21 : 43,221.69 = 17,173.05 : x
  2. Step 2: Convert to fraction form
    31,320.21/43,221.69 = 17,173.05/x
  3. Step 3: Cross multiply
    31,320.21x = 43,221.69 × 17,173.05
  4. Step 4: Simplify right side
    31,320.21x = 742,248,243.45
  5. Step 5: Solve for x
    x = 742,248,243.45/31,320.21
  6. Step 6: Final answer
    x = 23,698.70

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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.