Home / 21,271.42-29,395.03-15,957.01

Finding the Fourth Proportional to 21,271.42, 29,395.03 and 15,957.01

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Solution

The fourth proportional to 21,271.42, 29,395.03 and 15,957.01 is: 22,051.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271.42 : 29,395.03 = 15,957.01 : x
  2. Step 2: Convert to fraction form
    21,271.42/29,395.03 = 15,957.01/x
  3. Step 3: Cross multiply
    21,271.42x = 29,395.03 × 15,957.01
  4. Step 4: Simplify right side
    21,271.42x = 469,056,787.66
  5. Step 5: Solve for x
    x = 469,056,787.66/21,271.42
  6. Step 6: Final answer
    x = 22,051.03

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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.