Home / 44,518.47-66,784.32-12,928.80

Finding the Fourth Proportional to 44,518.47, 66,784.32 and 12,928.80

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Solution

The fourth proportional to 44,518.47, 66,784.32 and 12,928.80 is: 19,395.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,518.47 : 66,784.32 = 12,928.80 : x
  2. Step 2: Convert to fraction form
    44,518.47/66,784.32 = 12,928.80/x
  3. Step 3: Cross multiply
    44,518.47x = 66,784.32 × 12,928.80
  4. Step 4: Simplify right side
    44,518.47x = 863,441,116.42
  5. Step 5: Solve for x
    x = 863,441,116.42/44,518.47
  6. Step 6: Final answer
    x = 19,395.12

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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.