Home / 39,438.24-59,156.28-13,143.48

Finding the Fourth Proportional to 39,438.24, 59,156.28 and 13,143.48

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Solution

The fourth proportional to 39,438.24, 59,156.28 and 13,143.48 is: 19,714.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.24 : 59,156.28 = 13,143.48 : x
  2. Step 2: Convert to fraction form
    39,438.24/59,156.28 = 13,143.48/x
  3. Step 3: Cross multiply
    39,438.24x = 59,156.28 × 13,143.48
  4. Step 4: Simplify right side
    39,438.24x = 777,519,383.05
  5. Step 5: Solve for x
    x = 777,519,383.05/39,438.24
  6. Step 6: Final answer
    x = 19,714.86

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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.