Home / 30,455.41-45,652.43-12,695.89

Finding the Fourth Proportional to 30,455.41, 45,652.43 and 12,695.89

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Solution

The fourth proportional to 30,455.41, 45,652.43 and 12,695.89 is: 19,031.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.41 : 45,652.43 = 12,695.89 : x
  2. Step 2: Convert to fraction form
    30,455.41/45,652.43 = 12,695.89/x
  3. Step 3: Cross multiply
    30,455.41x = 45,652.43 × 12,695.89
  4. Step 4: Simplify right side
    30,455.41x = 579,598,197.01
  5. Step 5: Solve for x
    x = 579,598,197.01/30,455.41
  6. Step 6: Final answer
    x = 19,031.05

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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.