Home / 28,631.57-42,950.09-8,904.83

Finding the Fourth Proportional to 28,631.57, 42,950.09 and 8,904.83

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Solution

The fourth proportional to 28,631.57, 42,950.09 and 8,904.83 is: 13,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.57 : 42,950.09 = 8,904.83 : x
  2. Step 2: Convert to fraction form
    28,631.57/42,950.09 = 8,904.83/x
  3. Step 3: Cross multiply
    28,631.57x = 42,950.09 × 8,904.83
  4. Step 4: Simplify right side
    28,631.57x = 382,463,249.93
  5. Step 5: Solve for x
    x = 382,463,249.93/28,631.57
  6. Step 6: Final answer
    x = 13,358.10

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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.