Home / 21,679.04-29,898.32-14,122.52

Finding the Fourth Proportional to 21,679.04, 29,898.32 and 14,122.52

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Solution

The fourth proportional to 21,679.04, 29,898.32 and 14,122.52 is: 19,476.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,679.04 : 29,898.32 = 14,122.52 : x
  2. Step 2: Convert to fraction form
    21,679.04/29,898.32 = 14,122.52/x
  3. Step 3: Cross multiply
    21,679.04x = 29,898.32 × 14,122.52
  4. Step 4: Simplify right side
    21,679.04x = 422,239,622.17
  5. Step 5: Solve for x
    x = 422,239,622.17/21,679.04
  6. Step 6: Final answer
    x = 19,476.86

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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.