Home / 28,075.60-38,744.34-15,500.44

Finding the Fourth Proportional to 28,075.60, 38,744.34 and 15,500.44

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Solution

The fourth proportional to 28,075.60, 38,744.34 and 15,500.44 is: 21,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.60 : 38,744.34 = 15,500.44 : x
  2. Step 2: Convert to fraction form
    28,075.60/38,744.34 = 15,500.44/x
  3. Step 3: Cross multiply
    28,075.60x = 38,744.34 × 15,500.44
  4. Step 4: Simplify right side
    28,075.60x = 600,554,317.51
  5. Step 5: Solve for x
    x = 600,554,317.51/28,075.60
  6. Step 6: Final answer
    x = 21,390.61

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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.