Home / 31,551.05-43,539-17,210.54

Finding the Fourth Proportional to 31,551.05, 43,539 and 17,210.54

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Solution

The fourth proportional to 31,551.05, 43,539 and 17,210.54 is: 23,749.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,551.05 : 43,539 = 17,210.54 : x
  2. Step 2: Convert to fraction form
    31,551.05/43,539 = 17,210.54/x
  3. Step 3: Cross multiply
    31,551.05x = 43,539 × 17,210.54
  4. Step 4: Simplify right side
    31,551.05x = 749,329,483.37
  5. Step 5: Solve for x
    x = 749,329,483.37/31,551.05
  6. Step 6: Final answer
    x = 23,749.75

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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.