Home / 20,893.93-31,320.91-7,742.77

Finding the Fourth Proportional to 20,893.93, 31,320.91 and 7,742.77

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Solution

The fourth proportional to 20,893.93, 31,320.91 and 7,742.77 is: 11,606.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.93 : 31,320.91 = 7,742.77 : x
  2. Step 2: Convert to fraction form
    20,893.93/31,320.91 = 7,742.77/x
  3. Step 3: Cross multiply
    20,893.93x = 31,320.91 × 7,742.77
  4. Step 4: Simplify right side
    20,893.93x = 242,510,602.32
  5. Step 5: Solve for x
    x = 242,510,602.32/20,893.93
  6. Step 6: Final answer
    x = 11,606.75

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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.