Home / 34,536.20-51,842.70-21,403.40

Finding the Fourth Proportional to 34,536.20, 51,842.70 and 21,403.40

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Solution

The fourth proportional to 34,536.20, 51,842.70 and 21,403.40 is: 32,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,536.20 : 51,842.70 = 21,403.40 : x
  2. Step 2: Convert to fraction form
    34,536.20/51,842.70 = 21,403.40/x
  3. Step 3: Cross multiply
    34,536.20x = 51,842.70 × 21,403.40
  4. Step 4: Simplify right side
    34,536.20x = 1,109,610,045.18
  5. Step 5: Solve for x
    x = 1,109,610,045.18/34,536.20
  6. Step 6: Final answer
    x = 32,128.90

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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.