Home / 43,441.02-65,139.66-21,221.10

Finding the Fourth Proportional to 43,441.02, 65,139.66 and 21,221.10

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Solution

The fourth proportional to 43,441.02, 65,139.66 and 21,221.10 is: 31,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,441.02 : 65,139.66 = 21,221.10 : x
  2. Step 2: Convert to fraction form
    43,441.02/65,139.66 = 21,221.10/x
  3. Step 3: Cross multiply
    43,441.02x = 65,139.66 × 21,221.10
  4. Step 4: Simplify right side
    43,441.02x = 1,382,335,238.83
  5. Step 5: Solve for x
    x = 1,382,335,238.83/43,441.02
  6. Step 6: Final answer
    x = 31,820.97

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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.