Home / 21,375.83-32,030.94-13,043.36

Finding the Fourth Proportional to 21,375.83, 32,030.94 and 13,043.36

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Solution

The fourth proportional to 21,375.83, 32,030.94 and 13,043.36 is: 19,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.83 : 32,030.94 = 13,043.36 : x
  2. Step 2: Convert to fraction form
    21,375.83/32,030.94 = 13,043.36/x
  3. Step 3: Cross multiply
    21,375.83x = 32,030.94 × 13,043.36
  4. Step 4: Simplify right side
    21,375.83x = 417,791,210.55
  5. Step 5: Solve for x
    x = 417,791,210.55/21,375.83
  6. Step 6: Final answer
    x = 19,545.03

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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.