Home / 29,236.41-40,364.70-20,280.78

Finding the Fourth Proportional to 29,236.41, 40,364.70 and 20,280.78

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Solution

The fourth proportional to 29,236.41, 40,364.70 and 20,280.78 is: 28,000.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,236.41 : 40,364.70 = 20,280.78 : x
  2. Step 2: Convert to fraction form
    29,236.41/40,364.70 = 20,280.78/x
  3. Step 3: Cross multiply
    29,236.41x = 40,364.70 × 20,280.78
  4. Step 4: Simplify right side
    29,236.41x = 818,627,499.06
  5. Step 5: Solve for x
    x = 818,627,499.06/29,236.41
  6. Step 6: Final answer
    x = 28,000.27

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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.