Home / 21,387.21-32,080.83-5,804.83

Finding the Fourth Proportional to 21,387.21, 32,080.83 and 5,804.83

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Solution

The fourth proportional to 21,387.21, 32,080.83 and 5,804.83 is: 8,707.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387.21 : 32,080.83 = 5,804.83 : x
  2. Step 2: Convert to fraction form
    21,387.21/32,080.83 = 5,804.83/x
  3. Step 3: Cross multiply
    21,387.21x = 32,080.83 × 5,804.83
  4. Step 4: Simplify right side
    21,387.21x = 186,223,735.38
  5. Step 5: Solve for x
    x = 186,223,735.38/21,387.21
  6. Step 6: Final answer
    x = 8,707.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.