Home / 20,457.55-30,516.35-20,119.24

Finding the Fourth Proportional to 20,457.55, 30,516.35 and 20,119.24

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Solution

The fourth proportional to 20,457.55, 30,516.35 and 20,119.24 is: 30,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.55 : 30,516.35 = 20,119.24 : x
  2. Step 2: Convert to fraction form
    20,457.55/30,516.35 = 20,119.24/x
  3. Step 3: Cross multiply
    20,457.55x = 30,516.35 × 20,119.24
  4. Step 4: Simplify right side
    20,457.55x = 613,965,769.57
  5. Step 5: Solve for x
    x = 613,965,769.57/20,457.55
  6. Step 6: Final answer
    x = 30,011.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.