Home / 30,675.76-46,014.67-8,487.28

Finding the Fourth Proportional to 30,675.76, 46,014.67 and 8,487.28

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Solution

The fourth proportional to 30,675.76, 46,014.67 and 8,487.28 is: 12,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.76 : 46,014.67 = 8,487.28 : x
  2. Step 2: Convert to fraction form
    30,675.76/46,014.67 = 8,487.28/x
  3. Step 3: Cross multiply
    30,675.76x = 46,014.67 × 8,487.28
  4. Step 4: Simplify right side
    30,675.76x = 390,539,388.40
  5. Step 5: Solve for x
    x = 390,539,388.40/30,675.76
  6. Step 6: Final answer
    x = 12,731.20

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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.