Home / 28,324.84-39,089.70-15,749.32

Finding the Fourth Proportional to 28,324.84, 39,089.70 and 15,749.32

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Solution

The fourth proportional to 28,324.84, 39,089.70 and 15,749.32 is: 21,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.84 : 39,089.70 = 15,749.32 : x
  2. Step 2: Convert to fraction form
    28,324.84/39,089.70 = 15,749.32/x
  3. Step 3: Cross multiply
    28,324.84x = 39,089.70 × 15,749.32
  4. Step 4: Simplify right side
    28,324.84x = 615,636,194.00
  5. Step 5: Solve for x
    x = 615,636,194.00/28,324.84
  6. Step 6: Final answer
    x = 21,734.85

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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.