Home / 30,368.13-41,912.15-17,621.57

Finding the Fourth Proportional to 30,368.13, 41,912.15 and 17,621.57

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Solution

The fourth proportional to 30,368.13, 41,912.15 and 17,621.57 is: 24,320.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.13 : 41,912.15 = 17,621.57 : x
  2. Step 2: Convert to fraction form
    30,368.13/41,912.15 = 17,621.57/x
  3. Step 3: Cross multiply
    30,368.13x = 41,912.15 × 17,621.57
  4. Step 4: Simplify right side
    30,368.13x = 738,557,587.41
  5. Step 5: Solve for x
    x = 738,557,587.41/30,368.13
  6. Step 6: Final answer
    x = 24,320.15

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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.