Home / 42,497.00-63,693.20-18,778.99

Finding the Fourth Proportional to 42,497.00, 63,693.20 and 18,778.99

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Solution

The fourth proportional to 42,497.00, 63,693.20 and 18,778.99 is: 28,145.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,497.00 : 63,693.20 = 18,778.99 : x
  2. Step 2: Convert to fraction form
    42,497.00/63,693.20 = 18,778.99/x
  3. Step 3: Cross multiply
    42,497.00x = 63,693.20 × 18,778.99
  4. Step 4: Simplify right side
    42,497.00x = 1,196,093,973.01
  5. Step 5: Solve for x
    x = 1,196,093,973.01/42,497.00
  6. Step 6: Final answer
    x = 28,145.37

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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.