Home / 23,323.60-34,985.40-20,917.90

Finding the Fourth Proportional to 23,323.60, 34,985.40 and 20,917.90

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Solution

The fourth proportional to 23,323.60, 34,985.40 and 20,917.90 is: 31,376.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,323.60 : 34,985.40 = 20,917.90 : x
  2. Step 2: Convert to fraction form
    23,323.60/34,985.40 = 20,917.90/x
  3. Step 3: Cross multiply
    23,323.60x = 34,985.40 × 20,917.90
  4. Step 4: Simplify right side
    23,323.60x = 731,821,098.66
  5. Step 5: Solve for x
    x = 731,821,098.66/23,323.60
  6. Step 6: Final answer
    x = 31,376.85

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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.