Home / 26,281.20-39,421.80-10,690.80

Finding the Fourth Proportional to 26,281.20, 39,421.80 and 10,690.80

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Solution

The fourth proportional to 26,281.20, 39,421.80 and 10,690.80 is: 16,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,281.20 : 39,421.80 = 10,690.80 : x
  2. Step 2: Convert to fraction form
    26,281.20/39,421.80 = 10,690.80/x
  3. Step 3: Cross multiply
    26,281.20x = 39,421.80 × 10,690.80
  4. Step 4: Simplify right side
    26,281.20x = 421,450,579.44
  5. Step 5: Solve for x
    x = 421,450,579.44/26,281.20
  6. Step 6: Final answer
    x = 16,036.20

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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.