Home / 21,386.09-32,080.44-8,238.50

Finding the Fourth Proportional to 21,386.09, 32,080.44 and 8,238.50

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Solution

The fourth proportional to 21,386.09, 32,080.44 and 8,238.50 is: 12,358.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.09 : 32,080.44 = 8,238.50 : x
  2. Step 2: Convert to fraction form
    21,386.09/32,080.44 = 8,238.50/x
  3. Step 3: Cross multiply
    21,386.09x = 32,080.44 × 8,238.50
  4. Step 4: Simplify right side
    21,386.09x = 264,294,704.94
  5. Step 5: Solve for x
    x = 264,294,704.94/21,386.09
  6. Step 6: Final answer
    x = 12,358.25

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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.