Home / 30,415.17-41,973.11-16,987.60

Finding the Fourth Proportional to 30,415.17, 41,973.11 and 16,987.60

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Solution

The fourth proportional to 30,415.17, 41,973.11 and 16,987.60 is: 23,442.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,415.17 : 41,973.11 = 16,987.60 : x
  2. Step 2: Convert to fraction form
    30,415.17/41,973.11 = 16,987.60/x
  3. Step 3: Cross multiply
    30,415.17x = 41,973.11 × 16,987.60
  4. Step 4: Simplify right side
    30,415.17x = 713,022,403.44
  5. Step 5: Solve for x
    x = 713,022,403.44/30,415.17
  6. Step 6: Final answer
    x = 23,442.99

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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.