Home / 19,903.87-27,435.47-15,108.19

Finding the Fourth Proportional to 19,903.87, 27,435.47 and 15,108.19

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Solution

The fourth proportional to 19,903.87, 27,435.47 and 15,108.19 is: 20,825.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.87 : 27,435.47 = 15,108.19 : x
  2. Step 2: Convert to fraction form
    19,903.87/27,435.47 = 15,108.19/x
  3. Step 3: Cross multiply
    19,903.87x = 27,435.47 × 15,108.19
  4. Step 4: Simplify right side
    19,903.87x = 414,500,217.96
  5. Step 5: Solve for x
    x = 414,500,217.96/19,903.87
  6. Step 6: Final answer
    x = 20,825.11

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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.