Home / 20,656.98-28,499.85-11,701.26

Finding the Fourth Proportional to 20,656.98, 28,499.85 and 11,701.26

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Solution

The fourth proportional to 20,656.98, 28,499.85 and 11,701.26 is: 16,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656.98 : 28,499.85 = 11,701.26 : x
  2. Step 2: Convert to fraction form
    20,656.98/28,499.85 = 11,701.26/x
  3. Step 3: Cross multiply
    20,656.98x = 28,499.85 × 11,701.26
  4. Step 4: Simplify right side
    20,656.98x = 333,484,154.81
  5. Step 5: Solve for x
    x = 333,484,154.81/20,656.98
  6. Step 6: Final answer
    x = 16,143.90

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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.