Home / 43,004.16-64,521.72-19,309.86

Finding the Fourth Proportional to 43,004.16, 64,521.72 and 19,309.86

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Solution

The fourth proportional to 43,004.16, 64,521.72 and 19,309.86 is: 28,971.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,004.16 : 64,521.72 = 19,309.86 : x
  2. Step 2: Convert to fraction form
    43,004.16/64,521.72 = 19,309.86/x
  3. Step 3: Cross multiply
    43,004.16x = 64,521.72 × 19,309.86
  4. Step 4: Simplify right side
    43,004.16x = 1,245,905,380.16
  5. Step 5: Solve for x
    x = 1,245,905,380.16/43,004.16
  6. Step 6: Final answer
    x = 28,971.74

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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.