Home / 20,030.76-27,641.34-11,077.74

Finding the Fourth Proportional to 20,030.76, 27,641.34 and 11,077.74

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Solution

The fourth proportional to 20,030.76, 27,641.34 and 11,077.74 is: 15,286.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.76 : 27,641.34 = 11,077.74 : x
  2. Step 2: Convert to fraction form
    20,030.76/27,641.34 = 11,077.74/x
  3. Step 3: Cross multiply
    20,030.76x = 27,641.34 × 11,077.74
  4. Step 4: Simplify right side
    20,030.76x = 306,203,577.77
  5. Step 5: Solve for x
    x = 306,203,577.77/20,030.76
  6. Step 6: Final answer
    x = 15,286.67

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Half scale
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Double scale
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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.