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Finding the Fourth Proportional to 25,636.77, 35,378.76 and 15,026.40

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Solution

The fourth proportional to 25,636.77, 35,378.76 and 15,026.40 is: 20,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,636.77 : 35,378.76 = 15,026.40 : x
  2. Step 2: Convert to fraction form
    25,636.77/35,378.76 = 15,026.40/x
  3. Step 3: Cross multiply
    25,636.77x = 35,378.76 × 15,026.40
  4. Step 4: Simplify right side
    25,636.77x = 531,615,399.26
  5. Step 5: Solve for x
    x = 531,615,399.26/25,636.77
  6. Step 6: Final answer
    x = 20,736.44

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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.