Home / 39,274.62-54,199.21-21,369.76

Finding the Fourth Proportional to 39,274.62, 54,199.21 and 21,369.76

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Solution

The fourth proportional to 39,274.62, 54,199.21 and 21,369.76 is: 29,490.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,274.62 : 54,199.21 = 21,369.76 : x
  2. Step 2: Convert to fraction form
    39,274.62/54,199.21 = 21,369.76/x
  3. Step 3: Cross multiply
    39,274.62x = 54,199.21 × 21,369.76
  4. Step 4: Simplify right side
    39,274.62x = 1,158,224,109.89
  5. Step 5: Solve for x
    x = 1,158,224,109.89/39,274.62
  6. Step 6: Final answer
    x = 29,490.40

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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.