Home / 30,158.46-41,609.21-20,088.54

Finding the Fourth Proportional to 30,158.46, 41,609.21 and 20,088.54

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Solution

The fourth proportional to 30,158.46, 41,609.21 and 20,088.54 is: 27,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.46 : 41,609.21 = 20,088.54 : x
  2. Step 2: Convert to fraction form
    30,158.46/41,609.21 = 20,088.54/x
  3. Step 3: Cross multiply
    30,158.46x = 41,609.21 × 20,088.54
  4. Step 4: Simplify right side
    30,158.46x = 835,868,279.45
  5. Step 5: Solve for x
    x = 835,868,279.45/30,158.46
  6. Step 6: Final answer
    x = 27,715.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.