Home / 28,356.71-39,123.44-16,090.10

Finding the Fourth Proportional to 28,356.71, 39,123.44 and 16,090.10

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Solution

The fourth proportional to 28,356.71, 39,123.44 and 16,090.10 is: 22,199.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356.71 : 39,123.44 = 16,090.10 : x
  2. Step 2: Convert to fraction form
    28,356.71/39,123.44 = 16,090.10/x
  3. Step 3: Cross multiply
    28,356.71x = 39,123.44 × 16,090.10
  4. Step 4: Simplify right side
    28,356.71x = 629,499,866.33
  5. Step 5: Solve for x
    x = 629,499,866.33/28,356.71
  6. Step 6: Final answer
    x = 22,199.33

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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.