Home / 20,655.42-28,502.16-11,701.00

Finding the Fourth Proportional to 20,655.42, 28,502.16 and 11,701.00

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Solution

The fourth proportional to 20,655.42, 28,502.16 and 11,701.00 is: 16,146.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.42 : 28,502.16 = 11,701.00 : x
  2. Step 2: Convert to fraction form
    20,655.42/28,502.16 = 11,701.00/x
  3. Step 3: Cross multiply
    20,655.42x = 28,502.16 × 11,701.00
  4. Step 4: Simplify right side
    20,655.42x = 333,503,765.91
  5. Step 5: Solve for x
    x = 333,503,765.91/20,655.42
  6. Step 6: Final answer
    x = 16,146.07

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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.