Home / 31,608.77-43,621.36-18,180.01

Finding the Fourth Proportional to 31,608.77, 43,621.36 and 18,180.01

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Solution

The fourth proportional to 31,608.77, 43,621.36 and 18,180.01 is: 25,089.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,608.77 : 43,621.36 = 18,180.01 : x
  2. Step 2: Convert to fraction form
    31,608.77/43,621.36 = 18,180.01/x
  3. Step 3: Cross multiply
    31,608.77x = 43,621.36 × 18,180.01
  4. Step 4: Simplify right side
    31,608.77x = 793,036,821.22
  5. Step 5: Solve for x
    x = 793,036,821.22/31,608.77
  6. Step 6: Final answer
    x = 25,089.14

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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.