Home / 29,320.68-40,423.14-20,922.60

Finding the Fourth Proportional to 29,320.68, 40,423.14 and 20,922.60

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Solution

The fourth proportional to 29,320.68, 40,423.14 and 20,922.60 is: 28,845.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,320.68 : 40,423.14 = 20,922.60 : x
  2. Step 2: Convert to fraction form
    29,320.68/40,423.14 = 20,922.60/x
  3. Step 3: Cross multiply
    29,320.68x = 40,423.14 × 20,922.60
  4. Step 4: Simplify right side
    29,320.68x = 845,757,188.96
  5. Step 5: Solve for x
    x = 845,757,188.96/29,320.68
  6. Step 6: Final answer
    x = 28,845.07

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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.