Home / 21,362.12-32,043.18-15,555.68

Finding the Fourth Proportional to 21,362.12, 32,043.18 and 15,555.68

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Solution

The fourth proportional to 21,362.12, 32,043.18 and 15,555.68 is: 23,333.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,362.12 : 32,043.18 = 15,555.68 : x
  2. Step 2: Convert to fraction form
    21,362.12/32,043.18 = 15,555.68/x
  3. Step 3: Cross multiply
    21,362.12x = 32,043.18 × 15,555.68
  4. Step 4: Simplify right side
    21,362.12x = 498,453,454.26
  5. Step 5: Solve for x
    x = 498,453,454.26/21,362.12
  6. Step 6: Final answer
    x = 23,333.52

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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.