Home / 30,651.80-42,303.44-17,223.08

Finding the Fourth Proportional to 30,651.80, 42,303.44 and 17,223.08

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Solution

The fourth proportional to 30,651.80, 42,303.44 and 17,223.08 is: 23,770.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.80 : 42,303.44 = 17,223.08 : x
  2. Step 2: Convert to fraction form
    30,651.80/42,303.44 = 17,223.08/x
  3. Step 3: Cross multiply
    30,651.80x = 42,303.44 × 17,223.08
  4. Step 4: Simplify right side
    30,651.80x = 728,595,531.40
  5. Step 5: Solve for x
    x = 728,595,531.40/30,651.80
  6. Step 6: Final answer
    x = 23,770.07

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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.