Home / 55,921.32-83,885.76-20,860.92

Finding the Fourth Proportional to 55,921.32, 83,885.76 and 20,860.92

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Solution

The fourth proportional to 55,921.32, 83,885.76 and 20,860.92 is: 31,292.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,921.32 : 83,885.76 = 20,860.92 : x
  2. Step 2: Convert to fraction form
    55,921.32/83,885.76 = 20,860.92/x
  3. Step 3: Cross multiply
    55,921.32x = 83,885.76 × 20,860.92
  4. Step 4: Simplify right side
    55,921.32x = 1,749,934,128.50
  5. Step 5: Solve for x
    x = 1,749,934,128.50/55,921.32
  6. Step 6: Final answer
    x = 31,292.79

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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.