Home / 26,278.40-39,417.60-16,428.80

Finding the Fourth Proportional to 26,278.40, 39,417.60 and 16,428.80

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Solution

The fourth proportional to 26,278.40, 39,417.60 and 16,428.80 is: 24,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,278.40 : 39,417.60 = 16,428.80 : x
  2. Step 2: Convert to fraction form
    26,278.40/39,417.60 = 16,428.80/x
  3. Step 3: Cross multiply
    26,278.40x = 39,417.60 × 16,428.80
  4. Step 4: Simplify right side
    26,278.40x = 647,583,866.88
  5. Step 5: Solve for x
    x = 647,583,866.88/26,278.40
  6. Step 6: Final answer
    x = 24,643.20

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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.