Home / 39,312.20-58,945.56-13,009.88

Finding the Fourth Proportional to 39,312.20, 58,945.56 and 13,009.88

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Solution

The fourth proportional to 39,312.20, 58,945.56 and 13,009.88 is: 19,507.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.20 : 58,945.56 = 13,009.88 : x
  2. Step 2: Convert to fraction form
    39,312.20/58,945.56 = 13,009.88/x
  3. Step 3: Cross multiply
    39,312.20x = 58,945.56 × 13,009.88
  4. Step 4: Simplify right side
    39,312.20x = 766,874,662.13
  5. Step 5: Solve for x
    x = 766,874,662.13/39,312.20
  6. Step 6: Final answer
    x = 19,507.29

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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.