Home / 20,457.27-30,685.80-5,666.07

Finding the Fourth Proportional to 20,457.27, 30,685.80 and 5,666.07

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Solution

The fourth proportional to 20,457.27, 30,685.80 and 5,666.07 is: 8,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,457.27 : 30,685.80 = 5,666.07 : x
  2. Step 2: Convert to fraction form
    20,457.27/30,685.80 = 5,666.07/x
  3. Step 3: Cross multiply
    20,457.27x = 30,685.80 × 5,666.07
  4. Step 4: Simplify right side
    20,457.27x = 173,867,890.81
  5. Step 5: Solve for x
    x = 173,867,890.81/20,457.27
  6. Step 6: Final answer
    x = 8,499.08

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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.