Home / 34,787.88-48,004.38-20,638.26

Finding the Fourth Proportional to 34,787.88, 48,004.38 and 20,638.26

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Solution

The fourth proportional to 34,787.88, 48,004.38 and 20,638.26 is: 28,479.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,787.88 : 48,004.38 = 20,638.26 : x
  2. Step 2: Convert to fraction form
    34,787.88/48,004.38 = 20,638.26/x
  3. Step 3: Cross multiply
    34,787.88x = 48,004.38 × 20,638.26
  4. Step 4: Simplify right side
    34,787.88x = 990,726,875.58
  5. Step 5: Solve for x
    x = 990,726,875.58/34,787.88
  6. Step 6: Final answer
    x = 28,479.08

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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.