Home / 21,203.25-31,804.88-6,411.84

Finding the Fourth Proportional to 21,203.25, 31,804.88 and 6,411.84

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Solution

The fourth proportional to 21,203.25, 31,804.88 and 6,411.84 is: 9,617.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,203.25 : 31,804.88 = 6,411.84 : x
  2. Step 2: Convert to fraction form
    21,203.25/31,804.88 = 6,411.84/x
  3. Step 3: Cross multiply
    21,203.25x = 31,804.88 × 6,411.84
  4. Step 4: Simplify right side
    21,203.25x = 203,927,769.72
  5. Step 5: Solve for x
    x = 203,927,769.72/21,203.25
  6. Step 6: Final answer
    x = 9,617.76

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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.