Home / 26,621.55-39,920.68-9,969.91

Finding the Fourth Proportional to 26,621.55, 39,920.68 and 9,969.91

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Solution

The fourth proportional to 26,621.55, 39,920.68 and 9,969.91 is: 14,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,621.55 : 39,920.68 = 9,969.91 : x
  2. Step 2: Convert to fraction form
    26,621.55/39,920.68 = 9,969.91/x
  3. Step 3: Cross multiply
    26,621.55x = 39,920.68 × 9,969.91
  4. Step 4: Simplify right side
    26,621.55x = 398,005,590.65
  5. Step 5: Solve for x
    x = 398,005,590.65/26,621.55
  6. Step 6: Final answer
    x = 14,950.50

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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.