Home / 20,077.56-27,678.06-14,090.58

Finding the Fourth Proportional to 20,077.56, 27,678.06 and 14,090.58

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Solution

The fourth proportional to 20,077.56, 27,678.06 and 14,090.58 is: 19,424.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.56 : 27,678.06 = 14,090.58 : x
  2. Step 2: Convert to fraction form
    20,077.56/27,678.06 = 14,090.58/x
  3. Step 3: Cross multiply
    20,077.56x = 27,678.06 × 14,090.58
  4. Step 4: Simplify right side
    20,077.56x = 389,999,918.67
  5. Step 5: Solve for x
    x = 389,999,918.67/20,077.56
  6. Step 6: Final answer
    x = 19,424.67

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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.