Home / 16,631.40-22,945.30-12,804.21

Finding the Fourth Proportional to 16,631.40, 22,945.30 and 12,804.21

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Solution

The fourth proportional to 16,631.40, 22,945.30 and 12,804.21 is: 17,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,631.40 : 22,945.30 = 12,804.21 : x
  2. Step 2: Convert to fraction form
    16,631.40/22,945.30 = 12,804.21/x
  3. Step 3: Cross multiply
    16,631.40x = 22,945.30 × 12,804.21
  4. Step 4: Simplify right side
    16,631.40x = 293,796,439.71
  5. Step 5: Solve for x
    x = 293,796,439.71/16,631.40
  6. Step 6: Final answer
    x = 17,665.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.