Home / 20,654.58-28,501.02-11,701.92

Finding the Fourth Proportional to 20,654.58, 28,501.02 and 11,701.92

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Solution

The fourth proportional to 20,654.58, 28,501.02 and 11,701.92 is: 16,147.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.58 : 28,501.02 = 11,701.92 : x
  2. Step 2: Convert to fraction form
    20,654.58/28,501.02 = 11,701.92/x
  3. Step 3: Cross multiply
    20,654.58x = 28,501.02 × 11,701.92
  4. Step 4: Simplify right side
    20,654.58x = 333,516,655.96
  5. Step 5: Solve for x
    x = 333,516,655.96/20,654.58
  6. Step 6: Final answer
    x = 16,147.35

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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.