Home / 39,785.68-59,681.08-13,481.36

Finding the Fourth Proportional to 39,785.68, 59,681.08 and 13,481.36

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Solution

The fourth proportional to 39,785.68, 59,681.08 and 13,481.36 is: 20,222.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.68 : 59,681.08 = 13,481.36 : x
  2. Step 2: Convert to fraction form
    39,785.68/59,681.08 = 13,481.36/x
  3. Step 3: Cross multiply
    39,785.68x = 59,681.08 × 13,481.36
  4. Step 4: Simplify right side
    39,785.68x = 804,582,124.67
  5. Step 5: Solve for x
    x = 804,582,124.67/39,785.68
  6. Step 6: Final answer
    x = 20,222.91

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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.