Home / 40,820.05-61,214.33-15,856.81

Finding the Fourth Proportional to 40,820.05, 61,214.33 and 15,856.81

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Solution

The fourth proportional to 40,820.05, 61,214.33 and 15,856.81 is: 23,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,820.05 : 61,214.33 = 15,856.81 : x
  2. Step 2: Convert to fraction form
    40,820.05/61,214.33 = 15,856.81/x
  3. Step 3: Cross multiply
    40,820.05x = 61,214.33 × 15,856.81
  4. Step 4: Simplify right side
    40,820.05x = 970,664,231.02
  5. Step 5: Solve for x
    x = 970,664,231.02/40,820.05
  6. Step 6: Final answer
    x = 23,779.10

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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.