Home / 30,327.30-45,514.76-21,032.55

Finding the Fourth Proportional to 30,327.30, 45,514.76 and 21,032.55

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Solution

The fourth proportional to 30,327.30, 45,514.76 and 21,032.55 is: 31,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,327.30 : 45,514.76 = 21,032.55 : x
  2. Step 2: Convert to fraction form
    30,327.30/45,514.76 = 21,032.55/x
  3. Step 3: Cross multiply
    30,327.30x = 45,514.76 × 21,032.55
  4. Step 4: Simplify right side
    30,327.30x = 957,291,360.28
  5. Step 5: Solve for x
    x = 957,291,360.28/30,327.30
  6. Step 6: Final answer
    x = 31,565.33

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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.