Home / 20,736,021.10-31,104,031.65-13,171,528.30

Finding the Fourth Proportional to 20,736,021.10, 31,104,031.65 and 13,171,528.30

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Solution

The fourth proportional to 20,736,021.10, 31,104,031.65 and 13,171,528.30 is: 19,757,292.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,021.10 : 31,104,031.65 = 13,171,528.30 : x
  2. Step 2: Convert to fraction form
    20,736,021.10/31,104,031.65 = 13,171,528.30/x
  3. Step 3: Cross multiply
    20,736,021.10x = 31,104,031.65 × 13,171,528.30
  4. Step 4: Simplify right side
    20,736,021.10x = 409,687,633,122,070.69
  5. Step 5: Solve for x
    x = 409,687,633,122,070.69/20,736,021.10
  6. Step 6: Final answer
    x = 19,757,292.45

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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.