Home / 43,612.82-65,419.29-12,448.07

Finding the Fourth Proportional to 43,612.82, 65,419.29 and 12,448.07

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Solution

The fourth proportional to 43,612.82, 65,419.29 and 12,448.07 is: 18,672.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,612.82 : 65,419.29 = 12,448.07 : x
  2. Step 2: Convert to fraction form
    43,612.82/65,419.29 = 12,448.07/x
  3. Step 3: Cross multiply
    43,612.82x = 65,419.29 × 12,448.07
  4. Step 4: Simplify right side
    43,612.82x = 814,343,574.17
  5. Step 5: Solve for x
    x = 814,343,574.17/43,612.82
  6. Step 6: Final answer
    x = 18,672.12

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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.