Home / 19,431.93-29,098.67-12,013.89

Finding the Fourth Proportional to 19,431.93, 29,098.67 and 12,013.89

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Solution

The fourth proportional to 19,431.93, 29,098.67 and 12,013.89 is: 17,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,431.93 : 29,098.67 = 12,013.89 : x
  2. Step 2: Convert to fraction form
    19,431.93/29,098.67 = 12,013.89/x
  3. Step 3: Cross multiply
    19,431.93x = 29,098.67 × 12,013.89
  4. Step 4: Simplify right side
    19,431.93x = 349,588,160.46
  5. Step 5: Solve for x
    x = 349,588,160.46/19,431.93
  6. Step 6: Final answer
    x = 17,990.40

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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.