Home / 20,082.93-27,718.37-12,810.34

Finding the Fourth Proportional to 20,082.93, 27,718.37 and 12,810.34

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Solution

The fourth proportional to 20,082.93, 27,718.37 and 12,810.34 is: 17,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.93 : 27,718.37 = 12,810.34 : x
  2. Step 2: Convert to fraction form
    20,082.93/27,718.37 = 12,810.34/x
  3. Step 3: Cross multiply
    20,082.93x = 27,718.37 × 12,810.34
  4. Step 4: Simplify right side
    20,082.93x = 355,081,743.95
  5. Step 5: Solve for x
    x = 355,081,743.95/20,082.93
  6. Step 6: Final answer
    x = 17,680.77

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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.