Home / 21,302.32-31,953.56-6,511.18

Finding the Fourth Proportional to 21,302.32, 31,953.56 and 6,511.18

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Solution

The fourth proportional to 21,302.32, 31,953.56 and 6,511.18 is: 9,766.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302.32 : 31,953.56 = 6,511.18 : x
  2. Step 2: Convert to fraction form
    21,302.32/31,953.56 = 6,511.18/x
  3. Step 3: Cross multiply
    21,302.32x = 31,953.56 × 6,511.18
  4. Step 4: Simplify right side
    21,302.32x = 208,055,238.40
  5. Step 5: Solve for x
    x = 208,055,238.40/21,302.32
  6. Step 6: Final answer
    x = 9,766.79

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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.