Home / 42,661.44-63,999.72-20,514.96

Finding the Fourth Proportional to 42,661.44, 63,999.72 and 20,514.96

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Solution

The fourth proportional to 42,661.44, 63,999.72 and 20,514.96 is: 30,776.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,661.44 : 63,999.72 = 20,514.96 : x
  2. Step 2: Convert to fraction form
    42,661.44/63,999.72 = 20,514.96/x
  3. Step 3: Cross multiply
    42,661.44x = 63,999.72 × 20,514.96
  4. Step 4: Simplify right side
    42,661.44x = 1,312,951,695.81
  5. Step 5: Solve for x
    x = 1,312,951,695.81/42,661.44
  6. Step 6: Final answer
    x = 30,776.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.