Home / 21,069.06-31,603.58-6,277.60

Finding the Fourth Proportional to 21,069.06, 31,603.58 and 6,277.60

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Solution

The fourth proportional to 21,069.06, 31,603.58 and 6,277.60 is: 9,416.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069.06 : 31,603.58 = 6,277.60 : x
  2. Step 2: Convert to fraction form
    21,069.06/31,603.58 = 6,277.60/x
  3. Step 3: Cross multiply
    21,069.06x = 31,603.58 × 6,277.60
  4. Step 4: Simplify right side
    21,069.06x = 198,394,633.81
  5. Step 5: Solve for x
    x = 198,394,633.81/21,069.06
  6. Step 6: Final answer
    x = 9,416.40

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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.