Home / 38,646.24-57,983.96-13,685.28

Finding the Fourth Proportional to 38,646.24, 57,983.96 and 13,685.28

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Solution

The fourth proportional to 38,646.24, 57,983.96 and 13,685.28 is: 20,533.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.24 : 57,983.96 = 13,685.28 : x
  2. Step 2: Convert to fraction form
    38,646.24/57,983.96 = 13,685.28/x
  3. Step 3: Cross multiply
    38,646.24x = 57,983.96 × 13,685.28
  4. Step 4: Simplify right side
    38,646.24x = 793,526,728.11
  5. Step 5: Solve for x
    x = 793,526,728.11/38,646.24
  6. Step 6: Final answer
    x = 20,533.09

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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.