Home / 28,349.45-39,121.44-16,412.98

Finding the Fourth Proportional to 28,349.45, 39,121.44 and 16,412.98

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Solution

The fourth proportional to 28,349.45, 39,121.44 and 16,412.98 is: 22,649.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,349.45 : 39,121.44 = 16,412.98 : x
  2. Step 2: Convert to fraction form
    28,349.45/39,121.44 = 16,412.98/x
  3. Step 3: Cross multiply
    28,349.45x = 39,121.44 × 16,412.98
  4. Step 4: Simplify right side
    28,349.45x = 642,099,330.23
  5. Step 5: Solve for x
    x = 642,099,330.23/28,349.45
  6. Step 6: Final answer
    x = 22,649.45

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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.