Home / 20,452.74-28,238.73-15,075.82

Finding the Fourth Proportional to 20,452.74, 28,238.73 and 15,075.82

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Solution

The fourth proportional to 20,452.74, 28,238.73 and 15,075.82 is: 20,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.74 : 28,238.73 = 15,075.82 : x
  2. Step 2: Convert to fraction form
    20,452.74/28,238.73 = 15,075.82/x
  3. Step 3: Cross multiply
    20,452.74x = 28,238.73 × 15,075.82
  4. Step 4: Simplify right side
    20,452.74x = 425,722,010.51
  5. Step 5: Solve for x
    x = 425,722,010.51/20,452.74
  6. Step 6: Final answer
    x = 20,814.91

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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.