Home / 28,623.06-42,961.01-20,626.13

Finding the Fourth Proportional to 28,623.06, 42,961.01 and 20,626.13

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Solution

The fourth proportional to 28,623.06, 42,961.01 and 20,626.13 is: 30,958.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.06 : 42,961.01 = 20,626.13 : x
  2. Step 2: Convert to fraction form
    28,623.06/42,961.01 = 20,626.13/x
  3. Step 3: Cross multiply
    28,623.06x = 42,961.01 × 20,626.13
  4. Step 4: Simplify right side
    28,623.06x = 886,119,377.19
  5. Step 5: Solve for x
    x = 886,119,377.19/28,623.06
  6. Step 6: Final answer
    x = 30,958.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.