Home / 19,871.40-29,807.10-14,622.60

Finding the Fourth Proportional to 19,871.40, 29,807.10 and 14,622.60

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Solution

The fourth proportional to 19,871.40, 29,807.10 and 14,622.60 is: 21,933.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.40 : 29,807.10 = 14,622.60 : x
  2. Step 2: Convert to fraction form
    19,871.40/29,807.10 = 14,622.60/x
  3. Step 3: Cross multiply
    19,871.40x = 29,807.10 × 14,622.60
  4. Step 4: Simplify right side
    19,871.40x = 435,857,300.46
  5. Step 5: Solve for x
    x = 435,857,300.46/19,871.40
  6. Step 6: Final answer
    x = 21,933.90

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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.