Home / 39,327.42-54,273.06-21,423.18

Finding the Fourth Proportional to 39,327.42, 54,273.06 and 21,423.18

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Solution

The fourth proportional to 39,327.42, 54,273.06 and 21,423.18 is: 29,564.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,327.42 : 54,273.06 = 21,423.18 : x
  2. Step 2: Convert to fraction form
    39,327.42/54,273.06 = 21,423.18/x
  3. Step 3: Cross multiply
    39,327.42x = 54,273.06 × 21,423.18
  4. Step 4: Simplify right side
    39,327.42x = 1,162,701,533.53
  5. Step 5: Solve for x
    x = 1,162,701,533.53/39,327.42
  6. Step 6: Final answer
    x = 29,564.65

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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.