Home / 28,217.18-38,938.32-16,284.32

Finding the Fourth Proportional to 28,217.18, 38,938.32 and 16,284.32

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Solution

The fourth proportional to 28,217.18, 38,938.32 and 16,284.32 is: 22,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217.18 : 38,938.32 = 16,284.32 : x
  2. Step 2: Convert to fraction form
    28,217.18/38,938.32 = 16,284.32/x
  3. Step 3: Cross multiply
    28,217.18x = 38,938.32 × 16,284.32
  4. Step 4: Simplify right side
    28,217.18x = 634,084,063.14
  5. Step 5: Solve for x
    x = 634,084,063.14/28,217.18
  6. Step 6: Final answer
    x = 22,471.56

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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.