Home / 42,418.08-63,628.03-12,835.87

Finding the Fourth Proportional to 42,418.08, 63,628.03 and 12,835.87

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Solution

The fourth proportional to 42,418.08, 63,628.03 and 12,835.87 is: 19,254.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,418.08 : 63,628.03 = 12,835.87 : x
  2. Step 2: Convert to fraction form
    42,418.08/63,628.03 = 12,835.87/x
  3. Step 3: Cross multiply
    42,418.08x = 63,628.03 × 12,835.87
  4. Step 4: Simplify right side
    42,418.08x = 816,720,978.41
  5. Step 5: Solve for x
    x = 816,720,978.41/42,418.08
  6. Step 6: Final answer
    x = 19,254.08

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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.