Home / 42,662.57-63,996.35-13,080.69

Finding the Fourth Proportional to 42,662.57, 63,996.35 and 13,080.69

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Solution

The fourth proportional to 42,662.57, 63,996.35 and 13,080.69 is: 19,621.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,662.57 : 63,996.35 = 13,080.69 : x
  2. Step 2: Convert to fraction form
    42,662.57/63,996.35 = 13,080.69/x
  3. Step 3: Cross multiply
    42,662.57x = 63,996.35 × 13,080.69
  4. Step 4: Simplify right side
    42,662.57x = 837,116,350.08
  5. Step 5: Solve for x
    x = 837,116,350.08/42,662.57
  6. Step 6: Final answer
    x = 19,621.80

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1.5x scale

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.