Home / 39,271.70-54,193.34-21,366.72

Finding the Fourth Proportional to 39,271.70, 54,193.34 and 21,366.72

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Solution

The fourth proportional to 39,271.70, 54,193.34 and 21,366.72 is: 29,485.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,271.70 : 54,193.34 = 21,366.72 : x
  2. Step 2: Convert to fraction form
    39,271.70/54,193.34 = 21,366.72/x
  3. Step 3: Cross multiply
    39,271.70x = 54,193.34 × 21,366.72
  4. Step 4: Simplify right side
    39,271.70x = 1,157,933,814.81
  5. Step 5: Solve for x
    x = 1,157,933,814.81/39,271.70
  6. Step 6: Final answer
    x = 29,485.20

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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.