Home / 42,540.30-58,662.09-28,195.14

Finding the Fourth Proportional to 42,540.30, 58,662.09 and 28,195.14

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Solution

The fourth proportional to 42,540.30, 58,662.09 and 28,195.14 is: 38,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,540.30 : 58,662.09 = 28,195.14 : x
  2. Step 2: Convert to fraction form
    42,540.30/58,662.09 = 28,195.14/x
  3. Step 3: Cross multiply
    42,540.30x = 58,662.09 × 28,195.14
  4. Step 4: Simplify right side
    42,540.30x = 1,653,985,840.24
  5. Step 5: Solve for x
    x = 1,653,985,840.24/42,540.30
  6. Step 6: Final answer
    x = 38,880.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.