Home / 28,839.10-39,788.65-16,090.22

Finding the Fourth Proportional to 28,839.10, 39,788.65 and 16,090.22

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Solution

The fourth proportional to 28,839.10, 39,788.65 and 16,090.22 is: 22,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.10 : 39,788.65 = 16,090.22 : x
  2. Step 2: Convert to fraction form
    28,839.10/39,788.65 = 16,090.22/x
  3. Step 3: Cross multiply
    28,839.10x = 39,788.65 × 16,090.22
  4. Step 4: Simplify right side
    28,839.10x = 640,208,051.55
  5. Step 5: Solve for x
    x = 640,208,051.55/28,839.10
  6. Step 6: Final answer
    x = 22,199.31

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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.