Home / 21,560.89-29,767.70-14,766.31

Finding the Fourth Proportional to 21,560.89, 29,767.70 and 14,766.31

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Solution

The fourth proportional to 21,560.89, 29,767.70 and 14,766.31 is: 20,386.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.89 : 29,767.70 = 14,766.31 : x
  2. Step 2: Convert to fraction form
    21,560.89/29,767.70 = 14,766.31/x
  3. Step 3: Cross multiply
    21,560.89x = 29,767.70 × 14,766.31
  4. Step 4: Simplify right side
    21,560.89x = 439,559,021.00
  5. Step 5: Solve for x
    x = 439,559,021.00/21,560.89
  6. Step 6: Final answer
    x = 20,386.87

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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.