Home / 21,059.13-31,583.30-9,962.85

Finding the Fourth Proportional to 21,059.13, 31,583.30 and 9,962.85

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Solution

The fourth proportional to 21,059.13, 31,583.30 and 9,962.85 is: 14,941.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.13 : 31,583.30 = 9,962.85 : x
  2. Step 2: Convert to fraction form
    21,059.13/31,583.30 = 9,962.85/x
  3. Step 3: Cross multiply
    21,059.13x = 31,583.30 × 9,962.85
  4. Step 4: Simplify right side
    21,059.13x = 314,659,630.59
  5. Step 5: Solve for x
    x = 314,659,630.59/21,059.13
  6. Step 6: Final answer
    x = 14,941.72

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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.