Home / 21,031.08-31,551.57-6,240.12

Finding the Fourth Proportional to 21,031.08, 31,551.57 and 6,240.12

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Solution

The fourth proportional to 21,031.08, 31,551.57 and 6,240.12 is: 9,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031.08 : 31,551.57 = 6,240.12 : x
  2. Step 2: Convert to fraction form
    21,031.08/31,551.57 = 6,240.12/x
  3. Step 3: Cross multiply
    21,031.08x = 31,551.57 × 6,240.12
  4. Step 4: Simplify right side
    21,031.08x = 196,885,582.99
  5. Step 5: Solve for x
    x = 196,885,582.99/21,031.08
  6. Step 6: Final answer
    x = 9,361.65

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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.