Home / 39,780.48-59,664.24-12,072

Finding the Fourth Proportional to 39,780.48, 59,664.24 and 12,072

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Solution

The fourth proportional to 39,780.48, 59,664.24 and 12,072 is: 18,106.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.48 : 59,664.24 = 12,072 : x
  2. Step 2: Convert to fraction form
    39,780.48/59,664.24 = 12,072/x
  3. Step 3: Cross multiply
    39,780.48x = 59,664.24 × 12,072
  4. Step 4: Simplify right side
    39,780.48x = 720,266,705.28
  5. Step 5: Solve for x
    x = 720,266,705.28/39,780.48
  6. Step 6: Final answer
    x = 18,106.03

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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.