Home / 21,913.85-32,923.29-14,031.78

Finding the Fourth Proportional to 21,913.85, 32,923.29 and 14,031.78

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Solution

The fourth proportional to 21,913.85, 32,923.29 and 14,031.78 is: 21,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.85 : 32,923.29 = 14,031.78 : x
  2. Step 2: Convert to fraction form
    21,913.85/32,923.29 = 14,031.78/x
  3. Step 3: Cross multiply
    21,913.85x = 32,923.29 × 14,031.78
  4. Step 4: Simplify right side
    21,913.85x = 461,972,362.16
  5. Step 5: Solve for x
    x = 461,972,362.16/21,913.85
  6. Step 6: Final answer
    x = 21,081.30

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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.