Home / 43,917.12-65,841.12-31,428

Finding the Fourth Proportional to 43,917.12, 65,841.12 and 31,428

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Solution

The fourth proportional to 43,917.12, 65,841.12 and 31,428 is: 47,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,917.12 : 65,841.12 = 31,428 : x
  2. Step 2: Convert to fraction form
    43,917.12/65,841.12 = 31,428/x
  3. Step 3: Cross multiply
    43,917.12x = 65,841.12 × 31,428
  4. Step 4: Simplify right side
    43,917.12x = 2,069,254,719.36
  5. Step 5: Solve for x
    x = 2,069,254,719.36/43,917.12
  6. Step 6: Final answer
    x = 47,117.27

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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.