Home / 21,271,817.31-29,354,709.24-13,011,272.75

Finding the Fourth Proportional to 21,271,817.31, 29,354,709.24 and 13,011,272.75

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Solution

The fourth proportional to 21,271,817.31, 29,354,709.24 and 13,011,272.75 is: 17,955,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,271,817.31 : 29,354,709.24 = 13,011,272.75 : x
  2. Step 2: Convert to fraction form
    21,271,817.31/29,354,709.24 = 13,011,272.75/x
  3. Step 3: Cross multiply
    21,271,817.31x = 29,354,709.24 × 13,011,272.75
  4. Step 4: Simplify right side
    21,271,817.31x = 381,942,128,271,811.62
  5. Step 5: Solve for x
    x = 381,942,128,271,811.62/21,271,817.31
  6. Step 6: Final answer
    x = 17,955,312.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.