Home / 39,576.30-54,614.55-21,670.98

Finding the Fourth Proportional to 39,576.30, 54,614.55 and 21,670.98

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Solution

The fourth proportional to 39,576.30, 54,614.55 and 21,670.98 is: 29,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,576.30 : 54,614.55 = 21,670.98 : x
  2. Step 2: Convert to fraction form
    39,576.30/54,614.55 = 21,670.98/x
  3. Step 3: Cross multiply
    39,576.30x = 54,614.55 × 21,670.98
  4. Step 4: Simplify right side
    39,576.30x = 1,183,550,820.76
  5. Step 5: Solve for x
    x = 1,183,550,820.76/39,576.30
  6. Step 6: Final answer
    x = 29,905.55

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1.5x scale

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.