Home / 39,219.31-58,828.87-11,139.63

Finding the Fourth Proportional to 39,219.31, 58,828.87 and 11,139.63

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Solution

The fourth proportional to 39,219.31, 58,828.87 and 11,139.63 is: 16,709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,219.31 : 58,828.87 = 11,139.63 : x
  2. Step 2: Convert to fraction form
    39,219.31/58,828.87 = 11,139.63/x
  3. Step 3: Cross multiply
    39,219.31x = 58,828.87 × 11,139.63
  4. Step 4: Simplify right side
    39,219.31x = 655,331,845.12
  5. Step 5: Solve for x
    x = 655,331,845.12/39,219.31
  6. Step 6: Final answer
    x = 16,709.42

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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.