Home / 21,379.09-32,033.58-15,108.47

Finding the Fourth Proportional to 21,379.09, 32,033.58 and 15,108.47

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Solution

The fourth proportional to 21,379.09, 32,033.58 and 15,108.47 is: 22,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,379.09 : 32,033.58 = 15,108.47 : x
  2. Step 2: Convert to fraction form
    21,379.09/32,033.58 = 15,108.47/x
  3. Step 3: Cross multiply
    21,379.09x = 32,033.58 × 15,108.47
  4. Step 4: Simplify right side
    21,379.09x = 483,978,465.91
  5. Step 5: Solve for x
    x = 483,978,465.91/21,379.09
  6. Step 6: Final answer
    x = 22,637.94

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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.