Home / 36,300.64-54,456.73-12,615.43

Finding the Fourth Proportional to 36,300.64, 54,456.73 and 12,615.43

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Solution

The fourth proportional to 36,300.64, 54,456.73 and 12,615.43 is: 18,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,300.64 : 54,456.73 = 12,615.43 : x
  2. Step 2: Convert to fraction form
    36,300.64/54,456.73 = 12,615.43/x
  3. Step 3: Cross multiply
    36,300.64x = 54,456.73 × 12,615.43
  4. Step 4: Simplify right side
    36,300.64x = 686,995,065.34
  5. Step 5: Solve for x
    x = 686,995,065.34/36,300.64
  6. Step 6: Final answer
    x = 18,925.15

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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.