Home / 42,623.60-63,940.20-13,041.20

Finding the Fourth Proportional to 42,623.60, 63,940.20 and 13,041.20

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Solution

The fourth proportional to 42,623.60, 63,940.20 and 13,041.20 is: 19,563.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,623.60 : 63,940.20 = 13,041.20 : x
  2. Step 2: Convert to fraction form
    42,623.60/63,940.20 = 13,041.20/x
  3. Step 3: Cross multiply
    42,623.60x = 63,940.20 × 13,041.20
  4. Step 4: Simplify right side
    42,623.60x = 833,856,936.24
  5. Step 5: Solve for x
    x = 833,856,936.24/42,623.60
  6. Step 6: Final answer
    x = 19,563.27

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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.