Home / 39,861.12-55,018.08-23,103.84

Finding the Fourth Proportional to 39,861.12, 55,018.08 and 23,103.84

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Solution

The fourth proportional to 39,861.12, 55,018.08 and 23,103.84 is: 31,888.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,861.12 : 55,018.08 = 23,103.84 : x
  2. Step 2: Convert to fraction form
    39,861.12/55,018.08 = 23,103.84/x
  3. Step 3: Cross multiply
    39,861.12x = 55,018.08 × 23,103.84
  4. Step 4: Simplify right side
    39,861.12x = 1,271,128,917.43
  5. Step 5: Solve for x
    x = 1,271,128,917.43/39,861.12
  6. Step 6: Final answer
    x = 31,888.94

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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.