Home / 23,430.90-32,311.61-21,486.02

Finding the Fourth Proportional to 23,430.90, 32,311.61 and 21,486.02

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Solution

The fourth proportional to 23,430.90, 32,311.61 and 21,486.02 is: 29,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,430.90 : 32,311.61 = 21,486.02 : x
  2. Step 2: Convert to fraction form
    23,430.90/32,311.61 = 21,486.02/x
  3. Step 3: Cross multiply
    23,430.90x = 32,311.61 × 21,486.02
  4. Step 4: Simplify right side
    23,430.90x = 694,247,629.70
  5. Step 5: Solve for x
    x = 694,247,629.70/23,430.90
  6. Step 6: Final answer
    x = 29,629.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.