Home / 19,977.36-29,966.07-18,759.48

Finding the Fourth Proportional to 19,977.36, 29,966.07 and 18,759.48

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Solution

The fourth proportional to 19,977.36, 29,966.07 and 18,759.48 is: 28,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.36 : 29,966.07 = 18,759.48 : x
  2. Step 2: Convert to fraction form
    19,977.36/29,966.07 = 18,759.48/x
  3. Step 3: Cross multiply
    19,977.36x = 29,966.07 × 18,759.48
  4. Step 4: Simplify right side
    19,977.36x = 562,147,890.84
  5. Step 5: Solve for x
    x = 562,147,890.84/19,977.36
  6. Step 6: Final answer
    x = 28,139.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.