Home / 28,188.21-38,900.36-16,088.45

Finding the Fourth Proportional to 28,188.21, 38,900.36 and 16,088.45

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Solution

The fourth proportional to 28,188.21, 38,900.36 and 16,088.45 is: 22,202.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.21 : 38,900.36 = 16,088.45 : x
  2. Step 2: Convert to fraction form
    28,188.21/38,900.36 = 16,088.45/x
  3. Step 3: Cross multiply
    28,188.21x = 38,900.36 × 16,088.45
  4. Step 4: Simplify right side
    28,188.21x = 625,846,496.84
  5. Step 5: Solve for x
    x = 625,846,496.84/28,188.21
  6. Step 6: Final answer
    x = 22,202.42

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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.