Home / 20,849.40-31,277.66-7,701.84

Finding the Fourth Proportional to 20,849.40, 31,277.66 and 7,701.84

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Solution

The fourth proportional to 20,849.40, 31,277.66 and 7,701.84 is: 11,554.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.40 : 31,277.66 = 7,701.84 : x
  2. Step 2: Convert to fraction form
    20,849.40/31,277.66 = 7,701.84/x
  3. Step 3: Cross multiply
    20,849.40x = 31,277.66 × 7,701.84
  4. Step 4: Simplify right side
    20,849.40x = 240,895,532.89
  5. Step 5: Solve for x
    x = 240,895,532.89/20,849.40
  6. Step 6: Final answer
    x = 11,554.08

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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.