Home / 30,275.64-41,756.72-19,668.69

Finding the Fourth Proportional to 30,275.64, 41,756.72 and 19,668.69

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Solution

The fourth proportional to 30,275.64, 41,756.72 and 19,668.69 is: 27,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,275.64 : 41,756.72 = 19,668.69 : x
  2. Step 2: Convert to fraction form
    30,275.64/41,756.72 = 19,668.69/x
  3. Step 3: Cross multiply
    30,275.64x = 41,756.72 × 19,668.69
  4. Step 4: Simplify right side
    30,275.64x = 821,299,882.75
  5. Step 5: Solve for x
    x = 821,299,882.75/30,275.64
  6. Step 6: Final answer
    x = 27,127.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.