Home / 19,817.98-29,731.92-13,985.98

Finding the Fourth Proportional to 19,817.98, 29,731.92 and 13,985.98

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Solution

The fourth proportional to 19,817.98, 29,731.92 and 13,985.98 is: 20,982.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.98 : 29,731.92 = 13,985.98 : x
  2. Step 2: Convert to fraction form
    19,817.98/29,731.92 = 13,985.98/x
  3. Step 3: Cross multiply
    19,817.98x = 29,731.92 × 13,985.98
  4. Step 4: Simplify right side
    19,817.98x = 415,830,038.48
  5. Step 5: Solve for x
    x = 415,830,038.48/19,817.98
  6. Step 6: Final answer
    x = 20,982.46

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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.