Home / 20,045.50-30,059.54-9,518.56

Finding the Fourth Proportional to 20,045.50, 30,059.54 and 9,518.56

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Solution

The fourth proportional to 20,045.50, 30,059.54 and 9,518.56 is: 14,273.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.50 : 30,059.54 = 9,518.56 : x
  2. Step 2: Convert to fraction form
    20,045.50/30,059.54 = 9,518.56/x
  3. Step 3: Cross multiply
    20,045.50x = 30,059.54 × 9,518.56
  4. Step 4: Simplify right side
    20,045.50x = 286,123,535.06
  5. Step 5: Solve for x
    x = 286,123,535.06/20,045.50
  6. Step 6: Final answer
    x = 14,273.70

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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.