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Finding the Fourth Proportional to 43,673.67, 65,510.45 and 13,688.11

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Solution

The fourth proportional to 43,673.67, 65,510.45 and 13,688.11 is: 20,532.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,673.67 : 65,510.45 = 13,688.11 : x
  2. Step 2: Convert to fraction form
    43,673.67/65,510.45 = 13,688.11/x
  3. Step 3: Cross multiply
    43,673.67x = 65,510.45 × 13,688.11
  4. Step 4: Simplify right side
    43,673.67x = 896,714,245.75
  5. Step 5: Solve for x
    x = 896,714,245.75/43,673.67
  6. Step 6: Final answer
    x = 20,532.15

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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.