Home / 25,689.08-35,453.48-15,078.48

Finding the Fourth Proportional to 25,689.08, 35,453.48 and 15,078.48

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Solution

The fourth proportional to 25,689.08, 35,453.48 and 15,078.48 is: 20,809.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,689.08 : 35,453.48 = 15,078.48 : x
  2. Step 2: Convert to fraction form
    25,689.08/35,453.48 = 15,078.48/x
  3. Step 3: Cross multiply
    25,689.08x = 35,453.48 × 15,078.48
  4. Step 4: Simplify right side
    25,689.08x = 534,584,513.72
  5. Step 5: Solve for x
    x = 534,584,513.72/25,689.08
  6. Step 6: Final answer
    x = 20,809.80

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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.