Home / 30,399.30-45,577.08-20,514.06

Finding the Fourth Proportional to 30,399.30, 45,577.08 and 20,514.06

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Solution

The fourth proportional to 30,399.30, 45,577.08 and 20,514.06 is: 30,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,399.30 : 45,577.08 = 20,514.06 : x
  2. Step 2: Convert to fraction form
    30,399.30/45,577.08 = 20,514.06/x
  3. Step 3: Cross multiply
    30,399.30x = 45,577.08 × 20,514.06
  4. Step 4: Simplify right side
    30,399.30x = 934,970,953.74
  5. Step 5: Solve for x
    x = 934,970,953.74/30,399.30
  6. Step 6: Final answer
    x = 30,756.33

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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.