Home / 19,971.12-29,956.64-6,823.58

Finding the Fourth Proportional to 19,971.12, 29,956.64 and 6,823.58

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Solution

The fourth proportional to 19,971.12, 29,956.64 and 6,823.58 is: 10,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.12 : 29,956.64 = 6,823.58 : x
  2. Step 2: Convert to fraction form
    19,971.12/29,956.64 = 6,823.58/x
  3. Step 3: Cross multiply
    19,971.12x = 29,956.64 × 6,823.58
  4. Step 4: Simplify right side
    19,971.12x = 204,411,529.57
  5. Step 5: Solve for x
    x = 204,411,529.57/19,971.12
  6. Step 6: Final answer
    x = 10,235.36

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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.