Home / 42,786.83-64,180.93-13,204.70

Finding the Fourth Proportional to 42,786.83, 64,180.93 and 13,204.70

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Solution

The fourth proportional to 42,786.83, 64,180.93 and 13,204.70 is: 19,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,786.83 : 64,180.93 = 13,204.70 : x
  2. Step 2: Convert to fraction form
    42,786.83/64,180.93 = 13,204.70/x
  3. Step 3: Cross multiply
    42,786.83x = 64,180.93 × 13,204.70
  4. Step 4: Simplify right side
    42,786.83x = 847,489,694.52
  5. Step 5: Solve for x
    x = 847,489,694.52/42,786.83
  6. Step 6: Final answer
    x = 19,807.25

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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.