Home / 43,345.74-64,976.30-21,158.22

Finding the Fourth Proportional to 43,345.74, 64,976.30 and 21,158.22

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Solution

The fourth proportional to 43,345.74, 64,976.30 and 21,158.22 is: 31,716.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,345.74 : 64,976.30 = 21,158.22 : x
  2. Step 2: Convert to fraction form
    43,345.74/64,976.30 = 21,158.22/x
  3. Step 3: Cross multiply
    43,345.74x = 64,976.30 × 21,158.22
  4. Step 4: Simplify right side
    43,345.74x = 1,374,782,850.19
  5. Step 5: Solve for x
    x = 1,374,782,850.19/43,345.74
  6. Step 6: Final answer
    x = 31,716.68

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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.