Home / 21,145.06-31,722.45-6,354.25

Finding the Fourth Proportional to 21,145.06, 31,722.45 and 6,354.25

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Solution

The fourth proportional to 21,145.06, 31,722.45 and 6,354.25 is: 9,532.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,145.06 : 31,722.45 = 6,354.25 : x
  2. Step 2: Convert to fraction form
    21,145.06/31,722.45 = 6,354.25/x
  3. Step 3: Cross multiply
    21,145.06x = 31,722.45 × 6,354.25
  4. Step 4: Simplify right side
    21,145.06x = 201,572,377.91
  5. Step 5: Solve for x
    x = 201,572,377.91/21,145.06
  6. Step 6: Final answer
    x = 9,532.84

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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.