Home / 30,415.58-41,969.33-16,985.12

Finding the Fourth Proportional to 30,415.58, 41,969.33 and 16,985.12

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Solution

The fourth proportional to 30,415.58, 41,969.33 and 16,985.12 is: 23,437.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,415.58 : 41,969.33 = 16,985.12 : x
  2. Step 2: Convert to fraction form
    30,415.58/41,969.33 = 16,985.12/x
  3. Step 3: Cross multiply
    30,415.58x = 41,969.33 × 16,985.12
  4. Step 4: Simplify right side
    30,415.58x = 712,853,811.60
  5. Step 5: Solve for x
    x = 712,853,811.60/30,415.58
  6. Step 6: Final answer
    x = 23,437.13

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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.