Home / 20,237.76-27,912.33-13,166.46

Finding the Fourth Proportional to 20,237.76, 27,912.33 and 13,166.46

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Solution

The fourth proportional to 20,237.76, 27,912.33 and 13,166.46 is: 18,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.76 : 27,912.33 = 13,166.46 : x
  2. Step 2: Convert to fraction form
    20,237.76/27,912.33 = 13,166.46/x
  3. Step 3: Cross multiply
    20,237.76x = 27,912.33 × 13,166.46
  4. Step 4: Simplify right side
    20,237.76x = 367,506,576.45
  5. Step 5: Solve for x
    x = 367,506,576.45/20,237.76
  6. Step 6: Final answer
    x = 18,159.45

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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.