Home / 39,237.97-54,148.53-21,333.05

Finding the Fourth Proportional to 39,237.97, 54,148.53 and 21,333.05

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Solution

The fourth proportional to 39,237.97, 54,148.53 and 21,333.05 is: 29,439.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,237.97 : 54,148.53 = 21,333.05 : x
  2. Step 2: Convert to fraction form
    39,237.97/54,148.53 = 21,333.05/x
  3. Step 3: Cross multiply
    39,237.97x = 54,148.53 × 21,333.05
  4. Step 4: Simplify right side
    39,237.97x = 1,155,152,977.94
  5. Step 5: Solve for x
    x = 1,155,152,977.94/39,237.97
  6. Step 6: Final answer
    x = 29,439.67

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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.