Home / 20,346.98-28,075.56-11,394.86

Finding the Fourth Proportional to 20,346.98, 28,075.56 and 11,394.86

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Solution

The fourth proportional to 20,346.98, 28,075.56 and 11,394.86 is: 15,723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346.98 : 28,075.56 = 11,394.86 : x
  2. Step 2: Convert to fraction form
    20,346.98/28,075.56 = 11,394.86/x
  3. Step 3: Cross multiply
    20,346.98x = 28,075.56 × 11,394.86
  4. Step 4: Simplify right side
    20,346.98x = 319,917,075.62
  5. Step 5: Solve for x
    x = 319,917,075.62/20,346.98
  6. Step 6: Final answer
    x = 15,723.07

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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.