Home / 20,182.40-30,273.60-9,814.40

Finding the Fourth Proportional to 20,182.40, 30,273.60 and 9,814.40

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Solution

The fourth proportional to 20,182.40, 30,273.60 and 9,814.40 is: 14,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.40 : 30,273.60 = 9,814.40 : x
  2. Step 2: Convert to fraction form
    20,182.40/30,273.60 = 9,814.40/x
  3. Step 3: Cross multiply
    20,182.40x = 30,273.60 × 9,814.40
  4. Step 4: Simplify right side
    20,182.40x = 297,117,219.84
  5. Step 5: Solve for x
    x = 297,117,219.84/20,182.40
  6. Step 6: Final answer
    x = 14,721.60

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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.