Home / 39,152.49-54,030.83-21,247.65

Finding the Fourth Proportional to 39,152.49, 54,030.83 and 21,247.65

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Solution

The fourth proportional to 39,152.49, 54,030.83 and 21,247.65 is: 29,321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,152.49 : 54,030.83 = 21,247.65 : x
  2. Step 2: Convert to fraction form
    39,152.49/54,030.83 = 21,247.65/x
  3. Step 3: Cross multiply
    39,152.49x = 54,030.83 × 21,247.65
  4. Step 4: Simplify right side
    39,152.49x = 1,148,028,218.17
  5. Step 5: Solve for x
    x = 1,148,028,218.17/39,152.49
  6. Step 6: Final answer
    x = 29,321.97

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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.