Home / 30,867.56-42,597.29-16,720.41

Finding the Fourth Proportional to 30,867.56, 42,597.29 and 16,720.41

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Solution

The fourth proportional to 30,867.56, 42,597.29 and 16,720.41 is: 23,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,867.56 : 42,597.29 = 16,720.41 : x
  2. Step 2: Convert to fraction form
    30,867.56/42,597.29 = 16,720.41/x
  3. Step 3: Cross multiply
    30,867.56x = 42,597.29 × 16,720.41
  4. Step 4: Simplify right side
    30,867.56x = 712,244,153.69
  5. Step 5: Solve for x
    x = 712,244,153.69/30,867.56
  6. Step 6: Final answer
    x = 23,074.20

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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.