Home / 31,320.08-43,222.88-17,173.36

Finding the Fourth Proportional to 31,320.08, 43,222.88 and 17,173.36

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Solution

The fourth proportional to 31,320.08, 43,222.88 and 17,173.36 is: 23,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.08 : 43,222.88 = 17,173.36 : x
  2. Step 2: Convert to fraction form
    31,320.08/43,222.88 = 17,173.36/x
  3. Step 3: Cross multiply
    31,320.08x = 43,222.88 × 17,173.36
  4. Step 4: Simplify right side
    31,320.08x = 742,282,078.48
  5. Step 5: Solve for x
    x = 742,282,078.48/31,320.08
  6. Step 6: Final answer
    x = 23,699.88

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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.