Home / 43,238.81-64,853.80-11,647.60

Finding the Fourth Proportional to 43,238.81, 64,853.80 and 11,647.60

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Solution

The fourth proportional to 43,238.81, 64,853.80 and 11,647.60 is: 17,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,238.81 : 64,853.80 = 11,647.60 : x
  2. Step 2: Convert to fraction form
    43,238.81/64,853.80 = 11,647.60/x
  3. Step 3: Cross multiply
    43,238.81x = 64,853.80 × 11,647.60
  4. Step 4: Simplify right side
    43,238.81x = 755,390,929.63
  5. Step 5: Solve for x
    x = 755,390,929.63/43,238.81
  6. Step 6: Final answer
    x = 17,470.21

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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.