Home / 39,138.48-58,712.40-12,846.24

Finding the Fourth Proportional to 39,138.48, 58,712.40 and 12,846.24

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Solution

The fourth proportional to 39,138.48, 58,712.40 and 12,846.24 is: 19,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.48 : 58,712.40 = 12,846.24 : x
  2. Step 2: Convert to fraction form
    39,138.48/58,712.40 = 12,846.24/x
  3. Step 3: Cross multiply
    39,138.48x = 58,712.40 × 12,846.24
  4. Step 4: Simplify right side
    39,138.48x = 754,233,581.38
  5. Step 5: Solve for x
    x = 754,233,581.38/39,138.48
  6. Step 6: Final answer
    x = 19,270.90

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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.