Home / 28,246.94-42,535.62-20,903.22

Finding the Fourth Proportional to 28,246.94, 42,535.62 and 20,903.22

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Solution

The fourth proportional to 28,246.94, 42,535.62 and 20,903.22 is: 31,477.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.94 : 42,535.62 = 20,903.22 : x
  2. Step 2: Convert to fraction form
    28,246.94/42,535.62 = 20,903.22/x
  3. Step 3: Cross multiply
    28,246.94x = 42,535.62 × 20,903.22
  4. Step 4: Simplify right side
    28,246.94x = 889,131,422.70
  5. Step 5: Solve for x
    x = 889,131,422.70/28,246.94
  6. Step 6: Final answer
    x = 31,477.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.