Home / 28,045.36-38,699.76-16,105.84

Finding the Fourth Proportional to 28,045.36, 38,699.76 and 16,105.84

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Solution

The fourth proportional to 28,045.36, 38,699.76 and 16,105.84 is: 22,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.36 : 38,699.76 = 16,105.84 : x
  2. Step 2: Convert to fraction form
    28,045.36/38,699.76 = 16,105.84/x
  3. Step 3: Cross multiply
    28,045.36x = 38,699.76 × 16,105.84
  4. Step 4: Simplify right side
    28,045.36x = 623,292,142.60
  5. Step 5: Solve for x
    x = 623,292,142.60/28,045.36
  6. Step 6: Final answer
    x = 22,224.43

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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.