Home / 28,075.85-38,760.44-19,474.56

Finding the Fourth Proportional to 28,075.85, 38,760.44 and 19,474.56

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Solution

The fourth proportional to 28,075.85, 38,760.44 and 19,474.56 is: 26,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075.85 : 38,760.44 = 19,474.56 : x
  2. Step 2: Convert to fraction form
    28,075.85/38,760.44 = 19,474.56/x
  3. Step 3: Cross multiply
    28,075.85x = 38,760.44 × 19,474.56
  4. Step 4: Simplify right side
    28,075.85x = 754,842,514.41
  5. Step 5: Solve for x
    x = 754,842,514.41/28,075.85
  6. Step 6: Final answer
    x = 26,885.83

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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.