Home / 30,443.34-45,646.79-12,652.55

Finding the Fourth Proportional to 30,443.34, 45,646.79 and 12,652.55

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Solution

The fourth proportional to 30,443.34, 45,646.79 and 12,652.55 is: 18,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.34 : 45,646.79 = 12,652.55 : x
  2. Step 2: Convert to fraction form
    30,443.34/45,646.79 = 12,652.55/x
  3. Step 3: Cross multiply
    30,443.34x = 45,646.79 × 12,652.55
  4. Step 4: Simplify right side
    30,443.34x = 577,548,500.43
  5. Step 5: Solve for x
    x = 577,548,500.43/30,443.34
  6. Step 6: Final answer
    x = 18,971.26

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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.