Home / 28,577.88-39,435.48-15,830.16

Finding the Fourth Proportional to 28,577.88, 39,435.48 and 15,830.16

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Solution

The fourth proportional to 28,577.88, 39,435.48 and 15,830.16 is: 21,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.88 : 39,435.48 = 15,830.16 : x
  2. Step 2: Convert to fraction form
    28,577.88/39,435.48 = 15,830.16/x
  3. Step 3: Cross multiply
    28,577.88x = 39,435.48 × 15,830.16
  4. Step 4: Simplify right side
    28,577.88x = 624,269,958.08
  5. Step 5: Solve for x
    x = 624,269,958.08/28,577.88
  6. Step 6: Final answer
    x = 21,844.52

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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.