Home / 20,024.70-30,030.57-14,490.78

Finding the Fourth Proportional to 20,024.70, 30,030.57 and 14,490.78

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Solution

The fourth proportional to 20,024.70, 30,030.57 and 14,490.78 is: 21,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,024.70 : 30,030.57 = 14,490.78 : x
  2. Step 2: Convert to fraction form
    20,024.70/30,030.57 = 14,490.78/x
  3. Step 3: Cross multiply
    20,024.70x = 30,030.57 × 14,490.78
  4. Step 4: Simplify right side
    20,024.70x = 435,166,383.14
  5. Step 5: Solve for x
    x = 435,166,383.14/20,024.70
  6. Step 6: Final answer
    x = 21,731.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.