Home / 27,914.40-38,518.80-15,980.96

Finding the Fourth Proportional to 27,914.40, 38,518.80 and 15,980.96

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Solution

The fourth proportional to 27,914.40, 38,518.80 and 15,980.96 is: 22,051.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,914.40 : 38,518.80 = 15,980.96 : x
  2. Step 2: Convert to fraction form
    27,914.40/38,518.80 = 15,980.96/x
  3. Step 3: Cross multiply
    27,914.40x = 38,518.80 × 15,980.96
  4. Step 4: Simplify right side
    27,914.40x = 615,567,402.05
  5. Step 5: Solve for x
    x = 615,567,402.05/27,914.40
  6. Step 6: Final answer
    x = 22,051.97

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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.