Home / 39,200.76-54,098.06-21,296.79

Finding the Fourth Proportional to 39,200.76, 54,098.06 and 21,296.79

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Solution

The fourth proportional to 39,200.76, 54,098.06 and 21,296.79 is: 29,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,200.76 : 54,098.06 = 21,296.79 : x
  2. Step 2: Convert to fraction form
    39,200.76/54,098.06 = 21,296.79/x
  3. Step 3: Cross multiply
    39,200.76x = 54,098.06 × 21,296.79
  4. Step 4: Simplify right side
    39,200.76x = 1,152,114,916.74
  5. Step 5: Solve for x
    x = 1,152,114,916.74/39,200.76
  6. Step 6: Final answer
    x = 29,390.12

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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.