Home / 30,575.04-45,851.68-13,921.12

Finding the Fourth Proportional to 30,575.04, 45,851.68 and 13,921.12

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Solution

The fourth proportional to 30,575.04, 45,851.68 and 13,921.12 is: 20,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575.04 : 45,851.68 = 13,921.12 : x
  2. Step 2: Convert to fraction form
    30,575.04/45,851.68 = 13,921.12/x
  3. Step 3: Cross multiply
    30,575.04x = 45,851.68 × 13,921.12
  4. Step 4: Simplify right side
    30,575.04x = 638,306,739.48
  5. Step 5: Solve for x
    x = 638,306,739.48/30,575.04
  6. Step 6: Final answer
    x = 20,876.73

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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.