Home / 28,680.01-39,578.93-16,105.21

Finding the Fourth Proportional to 28,680.01, 39,578.93 and 16,105.21

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Solution

The fourth proportional to 28,680.01, 39,578.93 and 16,105.21 is: 22,225.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.01 : 39,578.93 = 16,105.21 : x
  2. Step 2: Convert to fraction form
    28,680.01/39,578.93 = 16,105.21/x
  3. Step 3: Cross multiply
    28,680.01x = 39,578.93 × 16,105.21
  4. Step 4: Simplify right side
    28,680.01x = 637,426,860.15
  5. Step 5: Solve for x
    x = 637,426,860.15/28,680.01
  6. Step 6: Final answer
    x = 22,225.48

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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.