Home / 28,324.79-39,087.36-15,577.92

Finding the Fourth Proportional to 28,324.79, 39,087.36 and 15,577.92

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Solution

The fourth proportional to 28,324.79, 39,087.36 and 15,577.92 is: 21,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.79 : 39,087.36 = 15,577.92 : x
  2. Step 2: Convert to fraction form
    28,324.79/39,087.36 = 15,577.92/x
  3. Step 3: Cross multiply
    28,324.79x = 39,087.36 × 15,577.92
  4. Step 4: Simplify right side
    28,324.79x = 608,899,767.09
  5. Step 5: Solve for x
    x = 608,899,767.09/28,324.79
  6. Step 6: Final answer
    x = 21,497.06

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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.