Home / 28,328.45-39,093.69-15,582.18

Finding the Fourth Proportional to 28,328.45, 39,093.69 and 15,582.18

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Solution

The fourth proportional to 28,328.45, 39,093.69 and 15,582.18 is: 21,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.45 : 39,093.69 = 15,582.18 : x
  2. Step 2: Convert to fraction form
    28,328.45/39,093.69 = 15,582.18/x
  3. Step 3: Cross multiply
    28,328.45x = 39,093.69 × 15,582.18
  4. Step 4: Simplify right side
    28,328.45x = 609,164,914.44
  5. Step 5: Solve for x
    x = 609,164,914.44/28,328.45
  6. Step 6: Final answer
    x = 21,503.65

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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.