Home / 38,434.87-53,039.91-21,439.27

Finding the Fourth Proportional to 38,434.87, 53,039.91 and 21,439.27

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Solution

The fourth proportional to 38,434.87, 53,039.91 and 21,439.27 is: 29,586.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.87 : 53,039.91 = 21,439.27 : x
  2. Step 2: Convert to fraction form
    38,434.87/53,039.91 = 21,439.27/x
  3. Step 3: Cross multiply
    38,434.87x = 53,039.91 × 21,439.27
  4. Step 4: Simplify right side
    38,434.87x = 1,137,136,951.27
  5. Step 5: Solve for x
    x = 1,137,136,951.27/38,434.87
  6. Step 6: Final answer
    x = 29,586.08

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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.