Home / 39,337.71-54,286.34-21,433.20

Finding the Fourth Proportional to 39,337.71, 54,286.34 and 21,433.20

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Solution

The fourth proportional to 39,337.71, 54,286.34 and 21,433.20 is: 29,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,337.71 : 54,286.34 = 21,433.20 : x
  2. Step 2: Convert to fraction form
    39,337.71/54,286.34 = 21,433.20/x
  3. Step 3: Cross multiply
    39,337.71x = 54,286.34 × 21,433.20
  4. Step 4: Simplify right side
    39,337.71x = 1,163,529,875.32
  5. Step 5: Solve for x
    x = 1,163,529,875.32/39,337.71
  6. Step 6: Final answer
    x = 29,577.98

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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.