Home / 21,515.92-32,237.48-13,178.54

Finding the Fourth Proportional to 21,515.92, 32,237.48 and 13,178.54

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Solution

The fourth proportional to 21,515.92, 32,237.48 and 13,178.54 is: 19,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515.92 : 32,237.48 = 13,178.54 : x
  2. Step 2: Convert to fraction form
    21,515.92/32,237.48 = 13,178.54/x
  3. Step 3: Cross multiply
    21,515.92x = 32,237.48 × 13,178.54
  4. Step 4: Simplify right side
    21,515.92x = 424,842,934.38
  5. Step 5: Solve for x
    x = 424,842,934.38/21,515.92
  6. Step 6: Final answer
    x = 19,745.52

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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.