Home / 19,579.26-29,515.61-18,275.79

Finding the Fourth Proportional to 19,579.26, 29,515.61 and 18,275.79

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Solution

The fourth proportional to 19,579.26, 29,515.61 and 18,275.79 is: 27,550.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.26 : 29,515.61 = 18,275.79 : x
  2. Step 2: Convert to fraction form
    19,579.26/29,515.61 = 18,275.79/x
  3. Step 3: Cross multiply
    19,579.26x = 29,515.61 × 18,275.79
  4. Step 4: Simplify right side
    19,579.26x = 539,421,090.08
  5. Step 5: Solve for x
    x = 539,421,090.08/19,579.26
  6. Step 6: Final answer
    x = 27,550.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.