Home / 38,980.40-58,474.29-10,900.45

Finding the Fourth Proportional to 38,980.40, 58,474.29 and 10,900.45

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Solution

The fourth proportional to 38,980.40, 58,474.29 and 10,900.45 is: 16,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,980.40 : 58,474.29 = 10,900.45 : x
  2. Step 2: Convert to fraction form
    38,980.40/58,474.29 = 10,900.45/x
  3. Step 3: Cross multiply
    38,980.40x = 58,474.29 × 10,900.45
  4. Step 4: Simplify right side
    38,980.40x = 637,396,074.43
  5. Step 5: Solve for x
    x = 637,396,074.43/38,980.40
  6. Step 6: Final answer
    x = 16,351.71

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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.