Home / 31,356.09-43,271.75-17,208.63

Finding the Fourth Proportional to 31,356.09, 43,271.75 and 17,208.63

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Solution

The fourth proportional to 31,356.09, 43,271.75 and 17,208.63 is: 23,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.09 : 43,271.75 = 17,208.63 : x
  2. Step 2: Convert to fraction form
    31,356.09/43,271.75 = 17,208.63/x
  3. Step 3: Cross multiply
    31,356.09x = 43,271.75 × 17,208.63
  4. Step 4: Simplify right side
    31,356.09x = 744,647,578.22
  5. Step 5: Solve for x
    x = 744,647,578.22/31,356.09
  6. Step 6: Final answer
    x = 23,748.10

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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.