Home / 26,281.80-39,389.85-13,137.84

Finding the Fourth Proportional to 26,281.80, 39,389.85 and 13,137.84

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Solution

The fourth proportional to 26,281.80, 39,389.85 and 13,137.84 is: 19,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,281.80 : 39,389.85 = 13,137.84 : x
  2. Step 2: Convert to fraction form
    26,281.80/39,389.85 = 13,137.84/x
  3. Step 3: Cross multiply
    26,281.80x = 39,389.85 × 13,137.84
  4. Step 4: Simplify right side
    26,281.80x = 517,497,546.92
  5. Step 5: Solve for x
    x = 517,497,546.92/26,281.80
  6. Step 6: Final answer
    x = 19,690.34

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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.