Home / 28,577.47-42,893.88-13,796.77

Finding the Fourth Proportional to 28,577.47, 42,893.88 and 13,796.77

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Solution

The fourth proportional to 28,577.47, 42,893.88 and 13,796.77 is: 20,708.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.47 : 42,893.88 = 13,796.77 : x
  2. Step 2: Convert to fraction form
    28,577.47/42,893.88 = 13,796.77/x
  3. Step 3: Cross multiply
    28,577.47x = 42,893.88 × 13,796.77
  4. Step 4: Simplify right side
    28,577.47x = 591,796,713.31
  5. Step 5: Solve for x
    x = 591,796,713.31/28,577.47
  6. Step 6: Final answer
    x = 20,708.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.