Home / 31,310.04-43,208.38-16,970.34

Finding the Fourth Proportional to 31,310.04, 43,208.38 and 16,970.34

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Solution

The fourth proportional to 31,310.04, 43,208.38 and 16,970.34 is: 23,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,310.04 : 43,208.38 = 16,970.34 : x
  2. Step 2: Convert to fraction form
    31,310.04/43,208.38 = 16,970.34/x
  3. Step 3: Cross multiply
    31,310.04x = 43,208.38 × 16,970.34
  4. Step 4: Simplify right side
    31,310.04x = 733,260,899.45
  5. Step 5: Solve for x
    x = 733,260,899.45/31,310.04
  6. Step 6: Final answer
    x = 23,419.35

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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.