Home / 21,106.46-29,110.69-14,731.01

Finding the Fourth Proportional to 21,106.46, 29,110.69 and 14,731.01

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Solution

The fourth proportional to 21,106.46, 29,110.69 and 14,731.01 is: 20,317.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,106.46 : 29,110.69 = 14,731.01 : x
  2. Step 2: Convert to fraction form
    21,106.46/29,110.69 = 14,731.01/x
  3. Step 3: Cross multiply
    21,106.46x = 29,110.69 × 14,731.01
  4. Step 4: Simplify right side
    21,106.46x = 428,829,865.50
  5. Step 5: Solve for x
    x = 428,829,865.50/21,106.46
  6. Step 6: Final answer
    x = 20,317.47

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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.