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Finding the Fourth Proportional to 30,452.40, 45,642.24 and 15,668.40

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Solution

The fourth proportional to 30,452.40, 45,642.24 and 15,668.40 is: 23,483.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,452.40 : 45,642.24 = 15,668.40 : x
  2. Step 2: Convert to fraction form
    30,452.40/45,642.24 = 15,668.40/x
  3. Step 3: Cross multiply
    30,452.40x = 45,642.24 × 15,668.40
  4. Step 4: Simplify right side
    30,452.40x = 715,140,873.22
  5. Step 5: Solve for x
    x = 715,140,873.22/30,452.40
  6. Step 6: Final answer
    x = 23,483.89

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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.