Home / 20,986.56-31,510.86-14,010.04

Finding the Fourth Proportional to 20,986.56, 31,510.86 and 14,010.04

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Solution

The fourth proportional to 20,986.56, 31,510.86 and 14,010.04 is: 21,035.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986.56 : 31,510.86 = 14,010.04 : x
  2. Step 2: Convert to fraction form
    20,986.56/31,510.86 = 14,010.04/x
  3. Step 3: Cross multiply
    20,986.56x = 31,510.86 × 14,010.04
  4. Step 4: Simplify right side
    20,986.56x = 441,468,409.03
  5. Step 5: Solve for x
    x = 441,468,409.03/20,986.56
  6. Step 6: Final answer
    x = 21,035.77

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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.