Home / 20,025.11-27,605.18-15,762.51

Finding the Fourth Proportional to 20,025.11, 27,605.18 and 15,762.51

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Solution

The fourth proportional to 20,025.11, 27,605.18 and 15,762.51 is: 21,729.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.11 : 27,605.18 = 15,762.51 : x
  2. Step 2: Convert to fraction form
    20,025.11/27,605.18 = 15,762.51/x
  3. Step 3: Cross multiply
    20,025.11x = 27,605.18 × 15,762.51
  4. Step 4: Simplify right side
    20,025.11x = 435,126,846.99
  5. Step 5: Solve for x
    x = 435,126,846.99/20,025.11
  6. Step 6: Final answer
    x = 21,729.07

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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.