Home / 39,729.90-59,611.11-21,004.95

Finding the Fourth Proportional to 39,729.90, 59,611.11 and 21,004.95

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Solution

The fourth proportional to 39,729.90, 59,611.11 and 21,004.95 is: 31,516.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,729.90 : 59,611.11 = 21,004.95 : x
  2. Step 2: Convert to fraction form
    39,729.90/59,611.11 = 21,004.95/x
  3. Step 3: Cross multiply
    39,729.90x = 59,611.11 × 21,004.95
  4. Step 4: Simplify right side
    39,729.90x = 1,252,128,384.99
  5. Step 5: Solve for x
    x = 1,252,128,384.99/39,729.90
  6. Step 6: Final answer
    x = 31,516.02

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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.