Home / 39,670.01-54,748.15-21,768.50

Finding the Fourth Proportional to 39,670.01, 54,748.15 and 21,768.50

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Solution

The fourth proportional to 39,670.01, 54,748.15 and 21,768.50 is: 30,042.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,670.01 : 54,748.15 = 21,768.50 : x
  2. Step 2: Convert to fraction form
    39,670.01/54,748.15 = 21,768.50/x
  3. Step 3: Cross multiply
    39,670.01x = 54,748.15 × 21,768.50
  4. Step 4: Simplify right side
    39,670.01x = 1,191,784,829.53
  5. Step 5: Solve for x
    x = 1,191,784,829.53/39,670.01
  6. Step 6: Final answer
    x = 30,042.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.