Home / 21,025.62-31,554.08-9,935.72

Finding the Fourth Proportional to 21,025.62, 31,554.08 and 9,935.72

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Solution

The fourth proportional to 21,025.62, 31,554.08 and 9,935.72 is: 14,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.62 : 31,554.08 = 9,935.72 : x
  2. Step 2: Convert to fraction form
    21,025.62/31,554.08 = 9,935.72/x
  3. Step 3: Cross multiply
    21,025.62x = 31,554.08 × 9,935.72
  4. Step 4: Simplify right side
    21,025.62x = 313,512,503.74
  5. Step 5: Solve for x
    x = 313,512,503.74/21,025.62
  6. Step 6: Final answer
    x = 14,910.98

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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.