Home / 21,087.09-31,635.40-6,295.45

Finding the Fourth Proportional to 21,087.09, 31,635.40 and 6,295.45

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Solution

The fourth proportional to 21,087.09, 31,635.40 and 6,295.45 is: 9,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,087.09 : 31,635.40 = 6,295.45 : x
  2. Step 2: Convert to fraction form
    21,087.09/31,635.40 = 6,295.45/x
  3. Step 3: Cross multiply
    21,087.09x = 31,635.40 × 6,295.45
  4. Step 4: Simplify right side
    21,087.09x = 199,159,078.93
  5. Step 5: Solve for x
    x = 199,159,078.93/21,087.09
  6. Step 6: Final answer
    x = 9,444.60

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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.