Home / 20,734.08-28,619.31-19,676.22

Finding the Fourth Proportional to 20,734.08, 28,619.31 and 19,676.22

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Solution

The fourth proportional to 20,734.08, 28,619.31 and 19,676.22 is: 27,159.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.08 : 28,619.31 = 19,676.22 : x
  2. Step 2: Convert to fraction form
    20,734.08/28,619.31 = 19,676.22/x
  3. Step 3: Cross multiply
    20,734.08x = 28,619.31 × 19,676.22
  4. Step 4: Simplify right side
    20,734.08x = 563,119,839.81
  5. Step 5: Solve for x
    x = 563,119,839.81/20,734.08
  6. Step 6: Final answer
    x = 27,159.14

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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.