Home / 43,004.61-64,515.04-19,311.60

Finding the Fourth Proportional to 43,004.61, 64,515.04 and 19,311.60

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Solution

The fourth proportional to 43,004.61, 64,515.04 and 19,311.60 is: 28,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,004.61 : 64,515.04 = 19,311.60 : x
  2. Step 2: Convert to fraction form
    43,004.61/64,515.04 = 19,311.60/x
  3. Step 3: Cross multiply
    43,004.61x = 64,515.04 × 19,311.60
  4. Step 4: Simplify right side
    43,004.61x = 1,245,888,646.46
  5. Step 5: Solve for x
    x = 1,245,888,646.46/43,004.61
  6. Step 6: Final answer
    x = 28,971.05

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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.