Home / 42,630.08-63,940.80-11,465.60

Finding the Fourth Proportional to 42,630.08, 63,940.80 and 11,465.60

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Solution

The fourth proportional to 42,630.08, 63,940.80 and 11,465.60 is: 17,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630.08 : 63,940.80 = 11,465.60 : x
  2. Step 2: Convert to fraction form
    42,630.08/63,940.80 = 11,465.60/x
  3. Step 3: Cross multiply
    42,630.08x = 63,940.80 × 11,465.60
  4. Step 4: Simplify right side
    42,630.08x = 733,119,636.48
  5. Step 5: Solve for x
    x = 733,119,636.48/42,630.08
  6. Step 6: Final answer
    x = 17,197.24

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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.