Home / 43,985.32-65,928.47-21,814.61

Finding the Fourth Proportional to 43,985.32, 65,928.47 and 21,814.61

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Solution

The fourth proportional to 43,985.32, 65,928.47 and 21,814.61 is: 32,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,985.32 : 65,928.47 = 21,814.61 : x
  2. Step 2: Convert to fraction form
    43,985.32/65,928.47 = 21,814.61/x
  3. Step 3: Cross multiply
    43,985.32x = 65,928.47 × 21,814.61
  4. Step 4: Simplify right side
    43,985.32x = 1,438,203,422.23
  5. Step 5: Solve for x
    x = 1,438,203,422.23/43,985.32
  6. Step 6: Final answer
    x = 32,697.35

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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.