Home / 21,857.19-32,785.73-9,369.12

Finding the Fourth Proportional to 21,857.19, 32,785.73 and 9,369.12

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Solution

The fourth proportional to 21,857.19, 32,785.73 and 9,369.12 is: 14,053.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,857.19 : 32,785.73 = 9,369.12 : x
  2. Step 2: Convert to fraction form
    21,857.19/32,785.73 = 9,369.12/x
  3. Step 3: Cross multiply
    21,857.19x = 32,785.73 × 9,369.12
  4. Step 4: Simplify right side
    21,857.19x = 307,173,391.81
  5. Step 5: Solve for x
    x = 307,173,391.81/21,857.19
  6. Step 6: Final answer
    x = 14,053.65

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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.