Home / 30,451.09-45,561.79-17,977.90

Finding the Fourth Proportional to 30,451.09, 45,561.79 and 17,977.90

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Solution

The fourth proportional to 30,451.09, 45,561.79 and 17,977.90 is: 26,899.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.09 : 45,561.79 = 17,977.90 : x
  2. Step 2: Convert to fraction form
    30,451.09/45,561.79 = 17,977.90/x
  3. Step 3: Cross multiply
    30,451.09x = 45,561.79 × 17,977.90
  4. Step 4: Simplify right side
    30,451.09x = 819,105,304.44
  5. Step 5: Solve for x
    x = 819,105,304.44/30,451.09
  6. Step 6: Final answer
    x = 26,899.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.