Home / 23,021.70-34,364.50-19,755.78

Finding the Fourth Proportional to 23,021.70, 34,364.50 and 19,755.78

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Solution

The fourth proportional to 23,021.70, 34,364.50 and 19,755.78 is: 29,489.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,021.70 : 34,364.50 = 19,755.78 : x
  2. Step 2: Convert to fraction form
    23,021.70/34,364.50 = 19,755.78/x
  3. Step 3: Cross multiply
    23,021.70x = 34,364.50 × 19,755.78
  4. Step 4: Simplify right side
    23,021.70x = 678,897,501.81
  5. Step 5: Solve for x
    x = 678,897,501.81/23,021.70
  6. Step 6: Final answer
    x = 29,489.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.