Home / 20,927.68-31,313.08-12,463.22

Finding the Fourth Proportional to 20,927.68, 31,313.08 and 12,463.22

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Solution

The fourth proportional to 20,927.68, 31,313.08 and 12,463.22 is: 18,648.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.68 : 31,313.08 = 12,463.22 : x
  2. Step 2: Convert to fraction form
    20,927.68/31,313.08 = 12,463.22/x
  3. Step 3: Cross multiply
    20,927.68x = 31,313.08 × 12,463.22
  4. Step 4: Simplify right side
    20,927.68x = 390,261,804.92
  5. Step 5: Solve for x
    x = 390,261,804.92/20,927.68
  6. Step 6: Final answer
    x = 18,648.12

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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.