Home / 20,054.60-27,675.69-10,980.76

Finding the Fourth Proportional to 20,054.60, 27,675.69 and 10,980.76

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Solution

The fourth proportional to 20,054.60, 27,675.69 and 10,980.76 is: 15,153.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,054.60 : 27,675.69 = 10,980.76 : x
  2. Step 2: Convert to fraction form
    20,054.60/27,675.69 = 10,980.76/x
  3. Step 3: Cross multiply
    20,054.60x = 27,675.69 × 10,980.76
  4. Step 4: Simplify right side
    20,054.60x = 303,900,109.72
  5. Step 5: Solve for x
    x = 303,900,109.72/20,054.60
  6. Step 6: Final answer
    x = 15,153.64

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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.