Home / 38,638.68-57,959.46-13,681.36

Finding the Fourth Proportional to 38,638.68, 57,959.46 and 13,681.36

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Solution

The fourth proportional to 38,638.68, 57,959.46 and 13,681.36 is: 20,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,638.68 : 57,959.46 = 13,681.36 : x
  2. Step 2: Convert to fraction form
    38,638.68/57,959.46 = 13,681.36/x
  3. Step 3: Cross multiply
    38,638.68x = 57,959.46 × 13,681.36
  4. Step 4: Simplify right side
    38,638.68x = 792,964,237.67
  5. Step 5: Solve for x
    x = 792,964,237.67/38,638.68
  6. Step 6: Final answer
    x = 20,522.55

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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.