Home / 47,031.49-70,491.62-20,681.11

Finding the Fourth Proportional to 47,031.49, 70,491.62 and 20,681.11

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Solution

The fourth proportional to 47,031.49, 70,491.62 and 20,681.11 is: 30,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,031.49 : 70,491.62 = 20,681.11 : x
  2. Step 2: Convert to fraction form
    47,031.49/70,491.62 = 20,681.11/x
  3. Step 3: Cross multiply
    47,031.49x = 70,491.62 × 20,681.11
  4. Step 4: Simplify right side
    47,031.49x = 1,457,844,843.89
  5. Step 5: Solve for x
    x = 1,457,844,843.89/47,031.49
  6. Step 6: Final answer
    x = 30,997.21

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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.