Home / 43,620.83-65,437.37-21,435.08

Finding the Fourth Proportional to 43,620.83, 65,437.37 and 21,435.08

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Solution

The fourth proportional to 43,620.83, 65,437.37 and 21,435.08 is: 32,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,620.83 : 65,437.37 = 21,435.08 : x
  2. Step 2: Convert to fraction form
    43,620.83/65,437.37 = 21,435.08/x
  3. Step 3: Cross multiply
    43,620.83x = 65,437.37 × 21,435.08
  4. Step 4: Simplify right side
    43,620.83x = 1,402,655,260.94
  5. Step 5: Solve for x
    x = 1,402,655,260.94/43,620.83
  6. Step 6: Final answer
    x = 32,155.63

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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.