Home / 30,301.55-45,452.27-13,642.12

Finding the Fourth Proportional to 30,301.55, 45,452.27 and 13,642.12

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Solution

The fourth proportional to 30,301.55, 45,452.27 and 13,642.12 is: 20,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,301.55 : 45,452.27 = 13,642.12 : x
  2. Step 2: Convert to fraction form
    30,301.55/45,452.27 = 13,642.12/x
  3. Step 3: Cross multiply
    30,301.55x = 45,452.27 × 13,642.12
  4. Step 4: Simplify right side
    30,301.55x = 620,065,026.14
  5. Step 5: Solve for x
    x = 620,065,026.14/30,301.55
  6. Step 6: Final answer
    x = 20,463.15

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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.