Home / 39,358.45-54,314.76-21,453.22

Finding the Fourth Proportional to 39,358.45, 54,314.76 and 21,453.22

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Solution

The fourth proportional to 39,358.45, 54,314.76 and 21,453.22 is: 29,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358.45 : 54,314.76 = 21,453.22 : x
  2. Step 2: Convert to fraction form
    39,358.45/54,314.76 = 21,453.22/x
  3. Step 3: Cross multiply
    39,358.45x = 54,314.76 × 21,453.22
  4. Step 4: Simplify right side
    39,358.45x = 1,165,226,495.53
  5. Step 5: Solve for x
    x = 1,165,226,495.53/39,358.45
  6. Step 6: Final answer
    x = 29,605.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.