Home / 28,979.90-43,461.48-13,176.14

Finding the Fourth Proportional to 28,979.90, 43,461.48 and 13,176.14

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Solution

The fourth proportional to 28,979.90, 43,461.48 and 13,176.14 is: 19,760.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979.90 : 43,461.48 = 13,176.14 : x
  2. Step 2: Convert to fraction form
    28,979.90/43,461.48 = 13,176.14/x
  3. Step 3: Cross multiply
    28,979.90x = 43,461.48 × 13,176.14
  4. Step 4: Simplify right side
    28,979.90x = 572,654,545.09
  5. Step 5: Solve for x
    x = 572,654,545.09/28,979.90
  6. Step 6: Final answer
    x = 19,760.40

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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.