Home / 43,987.07-65,931.09-21,816.36

Finding the Fourth Proportional to 43,987.07, 65,931.09 and 21,816.36

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Solution

The fourth proportional to 43,987.07, 65,931.09 and 21,816.36 is: 32,699.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.07 : 65,931.09 = 21,816.36 : x
  2. Step 2: Convert to fraction form
    43,987.07/65,931.09 = 21,816.36/x
  3. Step 3: Cross multiply
    43,987.07x = 65,931.09 × 21,816.36
  4. Step 4: Simplify right side
    43,987.07x = 1,438,376,394.63
  5. Step 5: Solve for x
    x = 1,438,376,394.63/43,987.07
  6. Step 6: Final answer
    x = 32,699.98

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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.