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Finding the Fourth Proportional to 29,124.40, 43,648.80 and 13,508.80

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Solution

The fourth proportional to 29,124.40, 43,648.80 and 13,508.80 is: 20,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,124.40 : 43,648.80 = 13,508.80 : x
  2. Step 2: Convert to fraction form
    29,124.40/43,648.80 = 13,508.80/x
  3. Step 3: Cross multiply
    29,124.40x = 43,648.80 × 13,508.80
  4. Step 4: Simplify right side
    29,124.40x = 589,642,909.44
  5. Step 5: Solve for x
    x = 589,642,909.44/29,124.40
  6. Step 6: Final answer
    x = 20,245.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.