Home / 28,877.36-39,851.40-16,949.30

Finding the Fourth Proportional to 28,877.36, 39,851.40 and 16,949.30

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Solution

The fourth proportional to 28,877.36, 39,851.40 and 16,949.30 is: 23,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.36 : 39,851.40 = 16,949.30 : x
  2. Step 2: Convert to fraction form
    28,877.36/39,851.40 = 16,949.30/x
  3. Step 3: Cross multiply
    28,877.36x = 39,851.40 × 16,949.30
  4. Step 4: Simplify right side
    28,877.36x = 675,453,334.02
  5. Step 5: Solve for x
    x = 675,453,334.02/28,877.36
  6. Step 6: Final answer
    x = 23,390.41

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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.