Home / 39,491.83-54,498.72-21,586.91

Finding the Fourth Proportional to 39,491.83, 54,498.72 and 21,586.91

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Solution

The fourth proportional to 39,491.83, 54,498.72 and 21,586.91 is: 29,789.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,491.83 : 54,498.72 = 21,586.91 : x
  2. Step 2: Convert to fraction form
    39,491.83/54,498.72 = 21,586.91/x
  3. Step 3: Cross multiply
    39,491.83x = 54,498.72 × 21,586.91
  4. Step 4: Simplify right side
    39,491.83x = 1,176,458,590.07
  5. Step 5: Solve for x
    x = 1,176,458,590.07/39,491.83
  6. Step 6: Final answer
    x = 29,789.92

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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.