Home / 43,543.20-65,303.82-21,031.68

Finding the Fourth Proportional to 43,543.20, 65,303.82 and 21,031.68

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Solution

The fourth proportional to 43,543.20, 65,303.82 and 21,031.68 is: 31,542.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,543.20 : 65,303.82 = 21,031.68 : x
  2. Step 2: Convert to fraction form
    43,543.20/65,303.82 = 21,031.68/x
  3. Step 3: Cross multiply
    43,543.20x = 65,303.82 × 21,031.68
  4. Step 4: Simplify right side
    43,543.20x = 1,373,449,045.02
  5. Step 5: Solve for x
    x = 1,373,449,045.02/43,543.20
  6. Step 6: Final answer
    x = 31,542.22

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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.