Home / 29,216.04-40,318.10-15,787.28

Finding the Fourth Proportional to 29,216.04, 40,318.10 and 15,787.28

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Solution

The fourth proportional to 29,216.04, 40,318.10 and 15,787.28 is: 21,786.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,216.04 : 40,318.10 = 15,787.28 : x
  2. Step 2: Convert to fraction form
    29,216.04/40,318.10 = 15,787.28/x
  3. Step 3: Cross multiply
    29,216.04x = 40,318.10 × 15,787.28
  4. Step 4: Simplify right side
    29,216.04x = 636,513,133.77
  5. Step 5: Solve for x
    x = 636,513,133.77/29,216.04
  6. Step 6: Final answer
    x = 21,786.43

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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.