Home / 28,264.58-39,005.57-15,518.94

Finding the Fourth Proportional to 28,264.58, 39,005.57 and 15,518.94

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Solution

The fourth proportional to 28,264.58, 39,005.57 and 15,518.94 is: 21,416.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.58 : 39,005.57 = 15,518.94 : x
  2. Step 2: Convert to fraction form
    28,264.58/39,005.57 = 15,518.94/x
  3. Step 3: Cross multiply
    28,264.58x = 39,005.57 × 15,518.94
  4. Step 4: Simplify right side
    28,264.58x = 605,325,100.50
  5. Step 5: Solve for x
    x = 605,325,100.50/28,264.58
  6. Step 6: Final answer
    x = 21,416.38

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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.