Home / 43,344.72-64,971-18,398.16

Finding the Fourth Proportional to 43,344.72, 64,971 and 18,398.16

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Solution

The fourth proportional to 43,344.72, 64,971 and 18,398.16 is: 27,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,344.72 : 64,971 = 18,398.16 : x
  2. Step 2: Convert to fraction form
    43,344.72/64,971 = 18,398.16/x
  3. Step 3: Cross multiply
    43,344.72x = 64,971 × 18,398.16
  4. Step 4: Simplify right side
    43,344.72x = 1,195,346,853.36
  5. Step 5: Solve for x
    x = 1,195,346,853.36/43,344.72
  6. Step 6: Final answer
    x = 27,577.68

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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.