Home / 30,625.83-42,290.24-19,315.53

Finding the Fourth Proportional to 30,625.83, 42,290.24 and 19,315.53

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Solution

The fourth proportional to 30,625.83, 42,290.24 and 19,315.53 is: 26,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,625.83 : 42,290.24 = 19,315.53 : x
  2. Step 2: Convert to fraction form
    30,625.83/42,290.24 = 19,315.53/x
  3. Step 3: Cross multiply
    30,625.83x = 42,290.24 × 19,315.53
  4. Step 4: Simplify right side
    30,625.83x = 816,858,302.85
  5. Step 5: Solve for x
    x = 816,858,302.85/30,625.83
  6. Step 6: Final answer
    x = 26,672.20

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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.