Home / 25,979.55-38,979.61-13,507.44

Finding the Fourth Proportional to 25,979.55, 38,979.61 and 13,507.44

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Solution

The fourth proportional to 25,979.55, 38,979.61 and 13,507.44 is: 20,266.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979.55 : 38,979.61 = 13,507.44 : x
  2. Step 2: Convert to fraction form
    25,979.55/38,979.61 = 13,507.44/x
  3. Step 3: Cross multiply
    25,979.55x = 38,979.61 × 13,507.44
  4. Step 4: Simplify right side
    25,979.55x = 526,514,639.34
  5. Step 5: Solve for x
    x = 526,514,639.34/25,979.55
  6. Step 6: Final answer
    x = 20,266.51

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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.