Home / 42,540.99-63,814.73-12,961.35

Finding the Fourth Proportional to 42,540.99, 63,814.73 and 12,961.35

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Solution

The fourth proportional to 42,540.99, 63,814.73 and 12,961.35 is: 19,443.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,540.99 : 63,814.73 = 12,961.35 : x
  2. Step 2: Convert to fraction form
    42,540.99/63,814.73 = 12,961.35/x
  3. Step 3: Cross multiply
    42,540.99x = 63,814.73 × 12,961.35
  4. Step 4: Simplify right side
    42,540.99x = 827,124,985.88
  5. Step 5: Solve for x
    x = 827,124,985.88/42,540.99
  6. Step 6: Final answer
    x = 19,443.01

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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.