Home / 43,146.72-64,688.64-13,548.48

Finding the Fourth Proportional to 43,146.72, 64,688.64 and 13,548.48

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Solution

The fourth proportional to 43,146.72, 64,688.64 and 13,548.48 is: 20,312.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,146.72 : 64,688.64 = 13,548.48 : x
  2. Step 2: Convert to fraction form
    43,146.72/64,688.64 = 13,548.48/x
  3. Step 3: Cross multiply
    43,146.72x = 64,688.64 × 13,548.48
  4. Step 4: Simplify right side
    43,146.72x = 876,432,745.27
  5. Step 5: Solve for x
    x = 876,432,745.27/43,146.72
  6. Step 6: Final answer
    x = 20,312.85

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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.