Home / 38,581.61-57,857.70-13,617.01

Finding the Fourth Proportional to 38,581.61, 57,857.70 and 13,617.01

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Solution

The fourth proportional to 38,581.61, 57,857.70 and 13,617.01 is: 20,420.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.61 : 57,857.70 = 13,617.01 : x
  2. Step 2: Convert to fraction form
    38,581.61/57,857.70 = 13,617.01/x
  3. Step 3: Cross multiply
    38,581.61x = 57,857.70 × 13,617.01
  4. Step 4: Simplify right side
    38,581.61x = 787,848,590.19
  5. Step 5: Solve for x
    x = 787,848,590.19/38,581.61
  6. Step 6: Final answer
    x = 20,420.31

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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.