Home / 20,875.80-31,313.54-16,741.76

Finding the Fourth Proportional to 20,875.80, 31,313.54 and 16,741.76

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Solution

The fourth proportional to 20,875.80, 31,313.54 and 16,741.76 is: 25,112.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.80 : 31,313.54 = 16,741.76 : x
  2. Step 2: Convert to fraction form
    20,875.80/31,313.54 = 16,741.76/x
  3. Step 3: Cross multiply
    20,875.80x = 31,313.54 × 16,741.76
  4. Step 4: Simplify right side
    20,875.80x = 524,243,771.43
  5. Step 5: Solve for x
    x = 524,243,771.43/20,875.80
  6. Step 6: Final answer
    x = 25,112.51

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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.