Home / 39,128.83-58,593.06-21,579.19

Finding the Fourth Proportional to 39,128.83, 58,593.06 and 21,579.19

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Solution

The fourth proportional to 39,128.83, 58,593.06 and 21,579.19 is: 32,313.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128.83 : 58,593.06 = 21,579.19 : x
  2. Step 2: Convert to fraction form
    39,128.83/58,593.06 = 21,579.19/x
  3. Step 3: Cross multiply
    39,128.83x = 58,593.06 × 21,579.19
  4. Step 4: Simplify right side
    39,128.83x = 1,264,390,774.42
  5. Step 5: Solve for x
    x = 1,264,390,774.42/39,128.83
  6. Step 6: Final answer
    x = 32,313.53

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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.