Home / 21,171.04-31,730.64-7,303.84

Finding the Fourth Proportional to 21,171.04, 31,730.64 and 7,303.84

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Solution

The fourth proportional to 21,171.04, 31,730.64 and 7,303.84 is: 10,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,171.04 : 31,730.64 = 7,303.84 : x
  2. Step 2: Convert to fraction form
    21,171.04/31,730.64 = 7,303.84/x
  3. Step 3: Cross multiply
    21,171.04x = 31,730.64 × 7,303.84
  4. Step 4: Simplify right side
    21,171.04x = 231,755,517.66
  5. Step 5: Solve for x
    x = 231,755,517.66/21,171.04
  6. Step 6: Final answer
    x = 10,946.82

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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.