Home / 30,900.96-42,643.62-16,754.04

Finding the Fourth Proportional to 30,900.96, 42,643.62 and 16,754.04

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Solution

The fourth proportional to 30,900.96, 42,643.62 and 16,754.04 is: 23,120.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,900.96 : 42,643.62 = 16,754.04 : x
  2. Step 2: Convert to fraction form
    30,900.96/42,643.62 = 16,754.04/x
  3. Step 3: Cross multiply
    30,900.96x = 42,643.62 × 16,754.04
  4. Step 4: Simplify right side
    30,900.96x = 714,452,915.22
  5. Step 5: Solve for x
    x = 714,452,915.22/30,900.96
  6. Step 6: Final answer
    x = 23,120.74

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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.