Home / 25,709.16-35,481.26-15,638.30

Finding the Fourth Proportional to 25,709.16, 35,481.26 and 15,638.30

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Solution

The fourth proportional to 25,709.16, 35,481.26 and 15,638.30 is: 21,582.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,709.16 : 35,481.26 = 15,638.30 : x
  2. Step 2: Convert to fraction form
    25,709.16/35,481.26 = 15,638.30/x
  3. Step 3: Cross multiply
    25,709.16x = 35,481.26 × 15,638.30
  4. Step 4: Simplify right side
    25,709.16x = 554,866,332.66
  5. Step 5: Solve for x
    x = 554,866,332.66/25,709.16
  6. Step 6: Final answer
    x = 21,582.44

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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.