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Finding the Fourth Proportional to 34,250.70, 47,280.50 and 20,826.22

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Solution

The fourth proportional to 34,250.70, 47,280.50 and 20,826.22 is: 28,749.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,250.70 : 47,280.50 = 20,826.22 : x
  2. Step 2: Convert to fraction form
    34,250.70/47,280.50 = 20,826.22/x
  3. Step 3: Cross multiply
    34,250.70x = 47,280.50 × 20,826.22
  4. Step 4: Simplify right side
    34,250.70x = 984,674,094.71
  5. Step 5: Solve for x
    x = 984,674,094.71/34,250.70
  6. Step 6: Final answer
    x = 28,749.02

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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.