Home / 29,130.28-43,709.82-10,419.40

Finding the Fourth Proportional to 29,130.28, 43,709.82 and 10,419.40

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Solution

The fourth proportional to 29,130.28, 43,709.82 and 10,419.40 is: 15,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,130.28 : 43,709.82 = 10,419.40 : x
  2. Step 2: Convert to fraction form
    29,130.28/43,709.82 = 10,419.40/x
  3. Step 3: Cross multiply
    29,130.28x = 43,709.82 × 10,419.40
  4. Step 4: Simplify right side
    29,130.28x = 455,430,098.51
  5. Step 5: Solve for x
    x = 455,430,098.51/29,130.28
  6. Step 6: Final answer
    x = 15,634.25

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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.