Home / 19,630.34-27,090.31-10,678.32

Finding the Fourth Proportional to 19,630.34, 27,090.31 and 10,678.32

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Solution

The fourth proportional to 19,630.34, 27,090.31 and 10,678.32 is: 14,736.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.34 : 27,090.31 = 10,678.32 : x
  2. Step 2: Convert to fraction form
    19,630.34/27,090.31 = 10,678.32/x
  3. Step 3: Cross multiply
    19,630.34x = 27,090.31 × 10,678.32
  4. Step 4: Simplify right side
    19,630.34x = 289,278,999.08
  5. Step 5: Solve for x
    x = 289,278,999.08/19,630.34
  6. Step 6: Final answer
    x = 14,736.32

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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.