Home / 28,618.56-39,492-16,683.84

Finding the Fourth Proportional to 28,618.56, 39,492 and 16,683.84

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Solution

The fourth proportional to 28,618.56, 39,492 and 16,683.84 is: 23,022.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618.56 : 39,492 = 16,683.84 : x
  2. Step 2: Convert to fraction form
    28,618.56/39,492 = 16,683.84/x
  3. Step 3: Cross multiply
    28,618.56x = 39,492 × 16,683.84
  4. Step 4: Simplify right side
    28,618.56x = 658,878,209.28
  5. Step 5: Solve for x
    x = 658,878,209.28/28,618.56
  6. Step 6: Final answer
    x = 23,022.76

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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.