Home / 28,205.02-38,923.28-18,136.77

Finding the Fourth Proportional to 28,205.02, 38,923.28 and 18,136.77

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Solution

The fourth proportional to 28,205.02, 38,923.28 and 18,136.77 is: 25,028.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.02 : 38,923.28 = 18,136.77 : x
  2. Step 2: Convert to fraction form
    28,205.02/38,923.28 = 18,136.77/x
  3. Step 3: Cross multiply
    28,205.02x = 38,923.28 × 18,136.77
  4. Step 4: Simplify right side
    28,205.02x = 705,942,577.01
  5. Step 5: Solve for x
    x = 705,942,577.01/28,205.02
  6. Step 6: Final answer
    x = 25,028.97

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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.