Home / 28,284.10-39,029.78-16,348.21

Finding the Fourth Proportional to 28,284.10, 39,029.78 and 16,348.21

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Solution

The fourth proportional to 28,284.10, 39,029.78 and 16,348.21 is: 22,559.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,284.10 : 39,029.78 = 16,348.21 : x
  2. Step 2: Convert to fraction form
    28,284.10/39,029.78 = 16,348.21/x
  3. Step 3: Cross multiply
    28,284.10x = 39,029.78 × 16,348.21
  4. Step 4: Simplify right side
    28,284.10x = 638,066,762.80
  5. Step 5: Solve for x
    x = 638,066,762.80/28,284.10
  6. Step 6: Final answer
    x = 22,559.21

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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.