Home / 21,558.98-29,725.94-14,756.28

Finding the Fourth Proportional to 21,558.98, 29,725.94 and 14,756.28

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Solution

The fourth proportional to 21,558.98, 29,725.94 and 14,756.28 is: 20,346.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,558.98 : 29,725.94 = 14,756.28 : x
  2. Step 2: Convert to fraction form
    21,558.98/29,725.94 = 14,756.28/x
  3. Step 3: Cross multiply
    21,558.98x = 29,725.94 × 14,756.28
  4. Step 4: Simplify right side
    21,558.98x = 438,644,330.79
  5. Step 5: Solve for x
    x = 438,644,330.79/21,558.98
  6. Step 6: Final answer
    x = 20,346.25

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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.