Home / 21,631.60-32,454.68-21,485.80

Finding the Fourth Proportional to 21,631.60, 32,454.68 and 21,485.80

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Solution

The fourth proportional to 21,631.60, 32,454.68 and 21,485.80 is: 32,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.60 : 32,454.68 = 21,485.80 : x
  2. Step 2: Convert to fraction form
    21,631.60/32,454.68 = 21,485.80/x
  3. Step 3: Cross multiply
    21,631.60x = 32,454.68 × 21,485.80
  4. Step 4: Simplify right side
    21,631.60x = 697,314,763.54
  5. Step 5: Solve for x
    x = 697,314,763.54/21,631.60
  6. Step 6: Final answer
    x = 32,235.93

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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.