Home / 21,579.67-29,762.89-14,126.23

Finding the Fourth Proportional to 21,579.67, 29,762.89 and 14,126.23

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Solution

The fourth proportional to 21,579.67, 29,762.89 and 14,126.23 is: 19,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.67 : 29,762.89 = 14,126.23 : x
  2. Step 2: Convert to fraction form
    21,579.67/29,762.89 = 14,126.23/x
  3. Step 3: Cross multiply
    21,579.67x = 29,762.89 × 14,126.23
  4. Step 4: Simplify right side
    21,579.67x = 420,437,429.60
  5. Step 5: Solve for x
    x = 420,437,429.60/21,579.67
  6. Step 6: Final answer
    x = 19,483.03

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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.