Home / 28,845.02-39,806.16-16,269.78

Finding the Fourth Proportional to 28,845.02, 39,806.16 and 16,269.78

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Solution

The fourth proportional to 28,845.02, 39,806.16 and 16,269.78 is: 22,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.02 : 39,806.16 = 16,269.78 : x
  2. Step 2: Convert to fraction form
    28,845.02/39,806.16 = 16,269.78/x
  3. Step 3: Cross multiply
    28,845.02x = 39,806.16 × 16,269.78
  4. Step 4: Simplify right side
    28,845.02x = 647,637,465.84
  5. Step 5: Solve for x
    x = 647,637,465.84/28,845.02
  6. Step 6: Final answer
    x = 22,452.31

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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.