Home / 20,883.48-31,332.08-7,736.84

Finding the Fourth Proportional to 20,883.48, 31,332.08 and 7,736.84

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Solution

The fourth proportional to 20,883.48, 31,332.08 and 7,736.84 is: 11,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.48 : 31,332.08 = 7,736.84 : x
  2. Step 2: Convert to fraction form
    20,883.48/31,332.08 = 7,736.84/x
  3. Step 3: Cross multiply
    20,883.48x = 31,332.08 × 7,736.84
  4. Step 4: Simplify right side
    20,883.48x = 242,411,289.83
  5. Step 5: Solve for x
    x = 242,411,289.83/20,883.48
  6. Step 6: Final answer
    x = 11,607.80

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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.