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Finding the Fourth Proportional to 30,967.51, 46,453.04 and 8,779.15

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Solution

The fourth proportional to 30,967.51, 46,453.04 and 8,779.15 is: 13,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,967.51 : 46,453.04 = 8,779.15 : x
  2. Step 2: Convert to fraction form
    30,967.51/46,453.04 = 8,779.15/x
  3. Step 3: Cross multiply
    30,967.51x = 46,453.04 × 8,779.15
  4. Step 4: Simplify right side
    30,967.51x = 407,817,929.96
  5. Step 5: Solve for x
    x = 407,817,929.96/30,967.51
  6. Step 6: Final answer
    x = 13,169.22

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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.