Home / 20,926.45-31,394.61-6,887.58

Finding the Fourth Proportional to 20,926.45, 31,394.61 and 6,887.58

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Solution

The fourth proportional to 20,926.45, 31,394.61 and 6,887.58 is: 10,332.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.45 : 31,394.61 = 6,887.58 : x
  2. Step 2: Convert to fraction form
    20,926.45/31,394.61 = 6,887.58/x
  3. Step 3: Cross multiply
    20,926.45x = 31,394.61 × 6,887.58
  4. Step 4: Simplify right side
    20,926.45x = 216,232,887.94
  5. Step 5: Solve for x
    x = 216,232,887.94/20,926.45
  6. Step 6: Final answer
    x = 10,332.99

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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.