Home / 21,067.95-31,601.61-6,276.96

Finding the Fourth Proportional to 21,067.95, 31,601.61 and 6,276.96

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Solution

The fourth proportional to 21,067.95, 31,601.61 and 6,276.96 is: 9,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.95 : 31,601.61 = 6,276.96 : x
  2. Step 2: Convert to fraction form
    21,067.95/31,601.61 = 6,276.96/x
  3. Step 3: Cross multiply
    21,067.95x = 31,601.61 × 6,276.96
  4. Step 4: Simplify right side
    21,067.95x = 198,362,041.91
  5. Step 5: Solve for x
    x = 198,362,041.91/21,067.95
  6. Step 6: Final answer
    x = 9,415.35

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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.