Home / 28,980.15-43,461.84-13,176.39

Finding the Fourth Proportional to 28,980.15, 43,461.84 and 13,176.39

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Solution

The fourth proportional to 28,980.15, 43,461.84 and 13,176.39 is: 19,760.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,980.15 : 43,461.84 = 13,176.39 : x
  2. Step 2: Convert to fraction form
    28,980.15/43,461.84 = 13,176.39/x
  3. Step 3: Cross multiply
    28,980.15x = 43,461.84 × 13,176.39
  4. Step 4: Simplify right side
    28,980.15x = 572,670,153.96
  5. Step 5: Solve for x
    x = 572,670,153.96/28,980.15
  6. Step 6: Final answer
    x = 19,760.77

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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.