Home / 20,273.60-27,870.16-17,430.50

Finding the Fourth Proportional to 20,273.60, 27,870.16 and 17,430.50

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Solution

The fourth proportional to 20,273.60, 27,870.16 and 17,430.50 is: 23,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.60 : 27,870.16 = 17,430.50 : x
  2. Step 2: Convert to fraction form
    20,273.60/27,870.16 = 17,430.50/x
  3. Step 3: Cross multiply
    20,273.60x = 27,870.16 × 17,430.50
  4. Step 4: Simplify right side
    20,273.60x = 485,790,823.88
  5. Step 5: Solve for x
    x = 485,790,823.88/20,273.60
  6. Step 6: Final answer
    x = 23,961.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.