Home / 21,182.13-31,774.68-6,392.16

Finding the Fourth Proportional to 21,182.13, 31,774.68 and 6,392.16

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Solution

The fourth proportional to 21,182.13, 31,774.68 and 6,392.16 is: 9,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.13 : 31,774.68 = 6,392.16 : x
  2. Step 2: Convert to fraction form
    21,182.13/31,774.68 = 6,392.16/x
  3. Step 3: Cross multiply
    21,182.13x = 31,774.68 × 6,392.16
  4. Step 4: Simplify right side
    21,182.13x = 203,108,838.51
  5. Step 5: Solve for x
    x = 203,108,838.51/21,182.13
  6. Step 6: Final answer
    x = 9,588.69

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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.