Home / 20,301.11-30,457.80-14,389.41

Finding the Fourth Proportional to 20,301.11, 30,457.80 and 14,389.41

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Solution

The fourth proportional to 20,301.11, 30,457.80 and 14,389.41 is: 21,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.11 : 30,457.80 = 14,389.41 : x
  2. Step 2: Convert to fraction form
    20,301.11/30,457.80 = 14,389.41/x
  3. Step 3: Cross multiply
    20,301.11x = 30,457.80 × 14,389.41
  4. Step 4: Simplify right side
    20,301.11x = 438,269,771.90
  5. Step 5: Solve for x
    x = 438,269,771.90/20,301.11
  6. Step 6: Final answer
    x = 21,588.47

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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.