Home / 25,487.19-35,189.64-15,930.81

Finding the Fourth Proportional to 25,487.19, 35,189.64 and 15,930.81

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Solution

The fourth proportional to 25,487.19, 35,189.64 and 15,930.81 is: 21,995.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,487.19 : 35,189.64 = 15,930.81 : x
  2. Step 2: Convert to fraction form
    25,487.19/35,189.64 = 15,930.81/x
  3. Step 3: Cross multiply
    25,487.19x = 35,189.64 × 15,930.81
  4. Step 4: Simplify right side
    25,487.19x = 560,599,468.81
  5. Step 5: Solve for x
    x = 560,599,468.81/25,487.19
  6. Step 6: Final answer
    x = 21,995.34

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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.