Home / 29,679.62-40,938.95-20,723.85

Finding the Fourth Proportional to 29,679.62, 40,938.95 and 20,723.85

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Solution

The fourth proportional to 29,679.62, 40,938.95 and 20,723.85 is: 28,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,679.62 : 40,938.95 = 20,723.85 : x
  2. Step 2: Convert to fraction form
    29,679.62/40,938.95 = 20,723.85/x
  3. Step 3: Cross multiply
    29,679.62x = 40,938.95 × 20,723.85
  4. Step 4: Simplify right side
    29,679.62x = 848,412,710.77
  5. Step 5: Solve for x
    x = 848,412,710.77/29,679.62
  6. Step 6: Final answer
    x = 28,585.70

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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.