Home / 43,457.76-65,186.10-13,875.21

Finding the Fourth Proportional to 43,457.76, 65,186.10 and 13,875.21

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Solution

The fourth proportional to 43,457.76, 65,186.10 and 13,875.21 is: 20,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,457.76 : 65,186.10 = 13,875.21 : x
  2. Step 2: Convert to fraction form
    43,457.76/65,186.10 = 13,875.21/x
  3. Step 3: Cross multiply
    43,457.76x = 65,186.10 × 13,875.21
  4. Step 4: Simplify right side
    43,457.76x = 904,470,826.58
  5. Step 5: Solve for x
    x = 904,470,826.58/43,457.76
  6. Step 6: Final answer
    x = 20,812.64

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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.