Home / 21,173.34-31,742.64-10,630.62

Finding the Fourth Proportional to 21,173.34, 31,742.64 and 10,630.62

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Solution

The fourth proportional to 21,173.34, 31,742.64 and 10,630.62 is: 15,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.34 : 31,742.64 = 10,630.62 : x
  2. Step 2: Convert to fraction form
    21,173.34/31,742.64 = 10,630.62/x
  3. Step 3: Cross multiply
    21,173.34x = 31,742.64 × 10,630.62
  4. Step 4: Simplify right side
    21,173.34x = 337,443,943.64
  5. Step 5: Solve for x
    x = 337,443,943.64/21,173.34
  6. Step 6: Final answer
    x = 15,937.21

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1.5x scale

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.