Home / 26,630.21-39,916.43-13,130.73

Finding the Fourth Proportional to 26,630.21, 39,916.43 and 13,130.73

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Solution

The fourth proportional to 26,630.21, 39,916.43 and 13,130.73 is: 19,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,630.21 : 39,916.43 = 13,130.73 : x
  2. Step 2: Convert to fraction form
    26,630.21/39,916.43 = 13,130.73/x
  3. Step 3: Cross multiply
    26,630.21x = 39,916.43 × 13,130.73
  4. Step 4: Simplify right side
    26,630.21x = 524,131,799.24
  5. Step 5: Solve for x
    x = 524,131,799.24/26,630.21
  6. Step 6: Final answer
    x = 19,681.85

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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.