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Finding the Fourth Proportional to 26,950.40, 40,425.60 and 17,619.20

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Solution

The fourth proportional to 26,950.40, 40,425.60 and 17,619.20 is: 26,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,950.40 : 40,425.60 = 17,619.20 : x
  2. Step 2: Convert to fraction form
    26,950.40/40,425.60 = 17,619.20/x
  3. Step 3: Cross multiply
    26,950.40x = 40,425.60 × 17,619.20
  4. Step 4: Simplify right side
    26,950.40x = 712,266,731.52
  5. Step 5: Solve for x
    x = 712,266,731.52/26,950.40
  6. Step 6: Final answer
    x = 26,428.80

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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.