Home / 38,661.48-57,986.70-12,362.76

Finding the Fourth Proportional to 38,661.48, 57,986.70 and 12,362.76

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Solution

The fourth proportional to 38,661.48, 57,986.70 and 12,362.76 is: 18,542.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,661.48 : 57,986.70 = 12,362.76 : x
  2. Step 2: Convert to fraction form
    38,661.48/57,986.70 = 12,362.76/x
  3. Step 3: Cross multiply
    38,661.48x = 57,986.70 × 12,362.76
  4. Step 4: Simplify right side
    38,661.48x = 716,875,655.29
  5. Step 5: Solve for x
    x = 716,875,655.29/38,661.48
  6. Step 6: Final answer
    x = 18,542.37

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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.