Home / 25,631.07-38,440.85-8,991.19

Finding the Fourth Proportional to 25,631.07, 38,440.85 and 8,991.19

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Solution

The fourth proportional to 25,631.07, 38,440.85 and 8,991.19 is: 13,484.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,631.07 : 38,440.85 = 8,991.19 : x
  2. Step 2: Convert to fraction form
    25,631.07/38,440.85 = 8,991.19/x
  3. Step 3: Cross multiply
    25,631.07x = 38,440.85 × 8,991.19
  4. Step 4: Simplify right side
    25,631.07x = 345,629,011.01
  5. Step 5: Solve for x
    x = 345,629,011.01/25,631.07
  6. Step 6: Final answer
    x = 13,484.77

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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.