Home / 39,436.37-54,423.48-21,532.74

Finding the Fourth Proportional to 39,436.37, 54,423.48 and 21,532.74

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Solution

The fourth proportional to 39,436.37, 54,423.48 and 21,532.74 is: 29,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,436.37 : 54,423.48 = 21,532.74 : x
  2. Step 2: Convert to fraction form
    39,436.37/54,423.48 = 21,532.74/x
  3. Step 3: Cross multiply
    39,436.37x = 54,423.48 × 21,532.74
  4. Step 4: Simplify right side
    39,436.37x = 1,171,886,644.74
  5. Step 5: Solve for x
    x = 1,171,886,644.74/39,436.37
  6. Step 6: Final answer
    x = 29,715.89

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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.