Home / 39,742.65-59,576.92-13,428.99

Finding the Fourth Proportional to 39,742.65, 59,576.92 and 13,428.99

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Solution

The fourth proportional to 39,742.65, 59,576.92 and 13,428.99 is: 20,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,742.65 : 59,576.92 = 13,428.99 : x
  2. Step 2: Convert to fraction form
    39,742.65/59,576.92 = 13,428.99/x
  3. Step 3: Cross multiply
    39,742.65x = 59,576.92 × 13,428.99
  4. Step 4: Simplify right side
    39,742.65x = 800,057,829.34
  5. Step 5: Solve for x
    x = 800,057,829.34/39,742.65
  6. Step 6: Final answer
    x = 20,130.96

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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.