Home / 21,050.85-31,581.45-6,259.68

Finding the Fourth Proportional to 21,050.85, 31,581.45 and 6,259.68

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Solution

The fourth proportional to 21,050.85, 31,581.45 and 6,259.68 is: 9,391.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.85 : 31,581.45 = 6,259.68 : x
  2. Step 2: Convert to fraction form
    21,050.85/31,581.45 = 6,259.68/x
  3. Step 3: Cross multiply
    21,050.85x = 31,581.45 × 6,259.68
  4. Step 4: Simplify right side
    21,050.85x = 197,689,770.94
  5. Step 5: Solve for x
    x = 197,689,770.94/21,050.85
  6. Step 6: Final answer
    x = 9,391.06

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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.