Home / 28,075.44-38,743.96-15,500.16

Finding the Fourth Proportional to 28,075.44, 38,743.96 and 15,500.16

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Solution

The fourth proportional to 28,075.44, 38,743.96 and 15,500.16 is: 21,390.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.44 : 38,743.96 = 15,500.16 : x
  2. Step 2: Convert to fraction form
    28,075.44/38,743.96 = 15,500.16/x
  3. Step 3: Cross multiply
    28,075.44x = 38,743.96 × 15,500.16
  4. Step 4: Simplify right side
    28,075.44x = 600,537,579.03
  5. Step 5: Solve for x
    x = 600,537,579.03/28,075.44
  6. Step 6: Final answer
    x = 21,390.14

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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.